{"title":"AK Price Adjustment","description":null,"products":[{"product_id":"astell-kern-a-ultima-sp4000","title":"Astell\u0026Kern A\u0026ultima SP4000 Digital Audio Player","description":"\u003cp\u003e\u003cstrong\u003e1-Year Local Warranty.\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAny mention of \"us,\" \"we,\" \"our,\" etc is by Astell\u0026amp;Kern, not AV One.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\n\u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000_-_Lorikeet_1.jpg?v=1751252835\" alt=\"\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eBuilt on Legacy, Evolving Perfection\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe A\u0026amp;ultima SP4000 is Astell\u0026amp;Kern’s newest flagship digital audio player, the result of three years of relentless research and innovation following the development of the SP3000.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eAs part of the A\u0026amp;ultima series—Astell\u0026amp;Kern’s flagship lineup combining cutting-edge technology and top-tier specifications—the SP4000 surpasses the boundaries set by the SP3000, once regarded as the ultimate reference.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eBuilt upon an advanced Octa audio circuit architecture, the SP4000 distils the purest essence of audio engineering, delivering a sound experience unlike anything before it—refined, powerful, and remarkably close to perfection. Discover the SP4000 and experience sound on an entirely new level.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eEnhanced signal processing capabilities with Octa audio circuit architecture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSupports High Driving Mode for delivering premium sound quality\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eMinimises group delay with proprietary ESA (Enhanced Signal Alignment) technology\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eUltra Low Noise LDO Regulator for top-tier noise suppression\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003ePrecision sound achieved with Any Layer Type PCB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eEquipped with a 99.9% Pure Copper Shield Can\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eFirst Astell\u0026amp;Kern Device to Support Full Android OS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eFirst Astell\u0026amp;Kern Device to Feature Advanced DAR Technology\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eFeatures 4.5th generation UI, combining functionality and emotional design\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000_-_Lorikeet_2.jpg?v=1751252816\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\n\u003cspan lang=\"EN-SG\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000_Copper_-_Lorikeet_1_600x600.jpg?v=1771576150\" alt=\"\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe Pinnacle of Pure Resonance\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSP4000 Copper Limited Edition\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe A\u0026amp;ultima SP4000 Copper Limited Edition goes beyond a high-end portable audio player. It represents the culmination of Astell\u0026amp;Kern’s expertise in material engineering, precision manufacturing, and refined analogue sound design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSP4000 Copper is the brand’s most definitive answer to a single question: how far can we go in the pursuit of the ultimate sound? Copper is theoretically one of the most ideal materials for audio, yet among the most difficult to use in real products. Its exceptional electrical conductivity and superior electromagnetic shielding minimise even the finest signal loss, but its rapid oxidation and low surface stability make practical application extremely challenging.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eIn portable devices, which are constantly exposed to temperature changes and external environments, copper becomes an even greater risk. Rather than avoiding this challenge, Astell\u0026amp;Kern confronted it directly, applying an advanced multi-layer coating process that requires high technical expertise to ensure the long-term stability of 99.98% pure copper.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe exterior, too, is never design for design’s sake. High-purity copper is highly susceptible to minute deformation during machining, yet Astell\u0026amp;Kern’s accumulated expertise enables precise control down to the finest tolerances. Through this process, the SP4000 Copper is realised not as a mass-produced device, but as a beautifully finished high-end audio object.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eMost importantly, the sound is the culmination of this relentless craftsmanship. Free from exaggeration or colouration, it delivers the texture and weight of instruments, the pace and breath of performance, rendered as an exceptionally refined expression of the original sound—enhanced by the inherent characteristics of copper.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDeep, authoritative bass, a dense and articulate midrange, and treble that fades naturally come together as a single, cohesive flow, allowing emotion to be fully revealed through sound. Beyond simply “great sound,” it offers an experience where the true value of the original recording is faithfully realised.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 Copper Limited Edition embodies Astell\u0026amp;Kern’s unwavering commitment to surpassing limits without compromise. Created for those who truly understand the essence of pure sound, SP4000 Copper sets a new standard for what high-end audio can be.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eEnhanced Signal Processing Capabilities with Octa Audio Circuit Architecture\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eIn the SP3000, the digital-to-analog signal processing structure was separated in a 1:2 ratio. With the SP4000, it has evolved into a 1:1 architecture.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThis new structure, where one AK4191 digital processor is paired with one AK4499EX DAC, allows digital signals to be delivered precisely to a single DAC without the need to distribute noise, enabling improved signal separation and processing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThrough continuous research and innovation in circuit technology, the SP4000 successfully implements a true Quad DAC—a feat previously considered impossible due to noise and other issues. As a result, the SP4000 achieves an impressive SNR (Signal-to-Noise Ratio) of 131dB, on par with the independent dual audio circuit of its predecessor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSupports High Driving Mode for\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003ePremium Sound Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 features twice as many OPAMPs arranged in parallel compared to its predecessor, delivering richer and more detailed sound. High Driving Mode provides powerful and stable output—much like a four-wheel-drive vehicle confidently navigating rough terrain. It’s designed to reproduce even the most delicate sonic details with precision, allowing you to enjoy deeper, clearer, and more immersive music.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eMinimised group delay with proprietary ESA (Enhanced Signal Alignment) technology\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 features proprietary ESA (Enhanced Signal Alignment) technology, which significantly improves one of audio’s long-standing challenges—group delay. ESA technology aligns frequency signals to arrive more uniformly, minimising frequency distortion and dramatically enhancing sound clarity and purity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eTop-Tier Noise Suppression\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e(Ultra Low Noise LDO Regulator)\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 features a newly implemented LDO (Low Dropout) Regulator in its power supply, which reduces noise by up to 97% compared to previous models. LDO Regulators are high-performance components typically used in precision medical devices and 5G communication equipment. They help stabilise battery voltage and effectively suppress noise, resulting in cleaner, purer sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003ePrecision Sound with Any Layer HDI PCB\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eTo achieve the highest sound quality, the SP4000 incorporates top-tier Any Layer HDI (High-Density Interconnect) PCB technology. Commonly used in smartphones and high-performance electronic devices, this advanced circuit board allows for the precise design of complex circuitry within a compact space. It minimises signal loss, enabling the delivery of a more refined and detailed sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eEquipped with 99.9% Pure Copper Shield Can\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 is equipped with a precision-engineered Shield Can to block various types of noise and electromagnetic interference that could affect the audio block. For the first time in Astell\u0026amp;Kern's lineup, a 99.9% pure copper Shield Can is used—providing not only exceptional shielding performance but also delivering sound that is clearer and more distinct than ever before.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000_-_Lorikeet_3.jpg?v=1751252962\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSound,\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eInfinite Possibilities\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000_-_Lorikeet_4.jpg?v=1751253016\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eAstell\u0026amp;Kern’s First-Ever Full Android OS Integration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eAstell\u0026amp;Kern has overcome Android OS’s sampling limitation (SRC) through its proprietary customisation technology, ADP (Astell\u0026amp;Kern Direct Path). This allows for bit-perfect, lossless playback even in streaming environments, ensuring the highest possible sound quality during music listening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000_-_Lorikeet_5_600x600.jpg?v=1751253048\"\u003e\u003c\/div\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eIn response to the growing shift toward streaming-based music consumption, Astell\u0026amp;Kern has integrated full Android OS for the first time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 not only delivers flagship-level audio quality but also offers enhanced convenience, marking its evolution into a highly refined next-generation digital audio player.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eFirst-Ever Implementation of Advanced DAR by Astell\u0026amp;Kern\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 introduces Advanced DAR, Astell\u0026amp;Kern’s second-generation DAR (Digital Audio Remaster) technology, delivering sound that is even more natural and refined. Rather than sending the audio file directly to the DAR engine, the SP4000 first uses VSE (Virtual Sound Extender) to virtually restore lost harmonics, enhancing the sound quality at the initial stage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThen, the advanced DAR engine performs a second-stage upsampling process with greater precision and completeness. This two-step approach allows listeners to enjoy a deeper, more immersive sound that comes closer than ever to the original recording.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000_-_Lorikeet_6.jpg?v=1751253085\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eDAR option | Maximum Conversion Rate\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003ePCM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e44.1kHz range PCM will be converted to 352.8kHz for playback\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e48kHz range PCM will be converted to 384kHz for playback\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eNo conversion will be made when playing DSD with this option selected\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eDSD\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003ePCM files lower than 96kHz will be converted to DSD128 for playback\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003ePCM files over 96kHz will be converted to DSD256 for playback\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDSD files below DSD256 will be converted DSD256 for playback with this option selected\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e* The DAR function can be turned on and off and you may select it to suit the source sound and your own preferences.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e* Max PCM rate 384kHz\/DSD64 conversion play is supported, and the files will be converted to and played in the sample rates that fit the source sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDrive Your Music, Latest Snapdragon Octa-Core CPU for the Newest Flagship Device\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eA\u0026amp;ultima SP4000 is equipped with a Snapdragon 6125 Octa-core processor, so you can enjoy the overwhelming sound, faster system response and a redesigned generation user interface that moves comfortably and smoothly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eFeaturing a high-performance CPU and improved 8GB of DDR4 memory, which is twice the amount commonly used, the more powerful system is stable with fast and fluid movement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe CPU, memory and wireless communication parts are configured as one module, with the digital circuit parts arranged in the same area creating a single system on a chip (SoC). This maximises the efficiency of the overall circuit configuration by providing more audio-only circuit space as well as reducing heat and noise from digital circuits.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eEnhanced 4.5th-Generation UI That Blends Function and Emotion\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 features an upgraded UI that balances both functionality and emotional experience. The main screen includes an immersive animation where an LP appears to slide in and out as you swipe through albums—turning the act of choosing music into a visually engaging and tactile experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe interface retains Astell\u0026amp;Kern’s signature Crimson theme, reflecting the brand’s identity and capturing its distinct emotional sensibility in a refined, modern design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eCrimson Theme + Interaction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eEdge\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eClean, angular lines echo the physical design of the device, seamlessly blending its identity into the screen for a striking, edge-defined aesthetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eSimple\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDespite its wide range of features, the interface is designed to be intuitive and user-friendly. Graphics are kept simple and unobtrusive, allowing users to focus entirely on the current screen without distraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eSensibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eMotion effects enhance emotional engagement and improve user interaction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000_-_Lorikeet_7.jpg?v=1751253287\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eMaterial Innovations, Use stainless steel 904L on DAP body material\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eTo achieve the goal of the A\u0026amp;ultima series, which is 'to provide the best value that no one can imitate while using the most innovative and uncompromising design and craftsmanship', the SP4000 uses 904L stainless steel material that has never been attempted before in a portable audio player. Using this material has expanded its value from just a digital device to the realm of a luxury good.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e904L stainless steel is harder and more difficult to process than general stainless steel requiring significantly more time and effort. However, due to its excellent durability and corrosion resistance, it has a characteristic that does not lose its beauty and is why it is used in expensive luxury watches where perfection in all materials and parts must be pursued with an irreplaceable and wonderful luster. Experience the uncompromising beauty and luxury of the SP4000 produced by Astell\u0026amp;Kern’s experienced craftsmanship.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSound Design Through DAC Filters\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eWith the SP4000, you can enjoy the fun of creating your own sound style by directly selecting various DAC filters provided by the DAC manufacturer. Design your own sound through 6 DAC filters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eReal-Time Information with LED Lights\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe LED light surrounding the power button provides information on the Bit Depth of the currently playing song, and also adds a visually pleasing element by making it shine and stand out.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e* The LED light can be turned on or off according to user settings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eCrossfeed, Speaker effect when listening through headphones\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eCrossfeed mixes parts of the original signal from one channel and sends that signal to the opposite channel with a time difference to center the sound image. Through the use of detailed settings such as Shelf Cutoff, Shelf Gain, and Mixer Level, you can set the level of crossfeed according to your listening preferences.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eAdoption of 6-inch 2180x1080 2K Display\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eExperience the SP4000 more conveniently and comfortably with a wide 6-inch, large-screen 2180x1080 2K display.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eAK File Drop to enjoy wireless transfers\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe new AK File Drop function in the SP4000 makes files transfers easier and more convenient. Using AK File Drop, you can freely transfer files wirelessly through a PC, smartphone, or FTP program located on the same network. Music file management is now possible with a cableless, wireless solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eReplayGain Automatically and Uniformly Adjusts Playback Volume\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eReplayGain for Automatic Volume Level Adjustment ReplayGain functionality, which adjusts audio sources with varying volume levels to a uniform loudness, has been implemented. Enjoy your personalised playlists with the ReplayGain feature.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e* ReplayGain supports up to 24bit\/192kHz audio sources.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003ePD 3.0 Fast Charging Supported\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 supports Qualcomm QC 3.0 fast charging, so you can charge your DAP faster and more efficiently than previous models, reaching a full charge in about 4 hours.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eWireless Hi-Fi Sound via BT Sink\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe BT Sink function allows you to connect the SP4000 to an external device via Bluetooth, similar to connecting a smartphone to a BT speaker. Music being played on the external device can be transmitted to the SP4000 through the BT Sink function.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003ePremium Shrunken Calf Leather Case from Germany’s Finest Leather House\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 is packaged with a premium leather case crafted from Shrunken Calf by Perlinger, Germany’s world-renowned leather house. Founded in 1864 and spanning five generations of craftsmanship, Perlinger supplies the finest leather to luxury brands across the globe—blending time-honoured tradition with modern techniques.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe Shrunken Calf leather used in the case is made from the soft, delicate hide of calves under one year old. It is processed using a chrome tanning method to preserve its natural texture, then uniquely shrunk using special agents—not heat—to retain its organic grain and wrinkles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eFollowing an aniline dyeing process, Perlinger’s proprietary pigments are added to achieve a deep, vibrant colour. Their advanced anti-aging treatment ensures that this richness lasts over time, complementing the SP4000 with a leather case that embodies lasting beauty, durability, and luxury.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDESIGN\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e‘Pierce: The force of light that pierces through the darkness.’\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 stands at the pinnacle of Astell\u0026amp;Kern’s flagship A\u0026amp;ultima line—a DAP that embodies the peak of performance and design. Like the The force of light that pierces through the darkness, the rotating volume wheel generates energy that is visualised as shards breaking through a solid wall. This imagery is captured through sharp edges, restrained detailing, and geometric structures, expressing both explosive force and concentrated power. The interplay of contrasting surfaces and multidimensional forms goes beyond aesthetics, serving as a visual representation of the SP4000’s high-performance audio capabilities. Even the angle of the volume wheel's patterns has been meticulously crafted to deliver subtle tactile resistance, offering a sensory experience that connects users to the sound itself. It's not just about control—it’s an intuitive, emotional interaction with music.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe choice of materials in the SP4000 perfectly embodies both technology and emotion. The front features high-gloss polished 904L stainless steel, while the rear is finished with PVD-coated ceramic, offering exceptional craftsmanship in both form and function.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000 is more than just a digital audio player—it is a work of art where technology, design, intuition, and performance converge, expressing a pure passion for the ultimate sound experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000_-_Lorikeet_8.jpg?v=1751253262\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eMore information can be found on Astell\u0026amp;Kern’s official website.\u003c\/span\u003e\u003c\/p\u003e","brand":"Astell\u0026Kern","offers":[{"title":"Black","offer_id":47202828386547,"sku":"SP4000 BLACK","price":5999.0,"currency_code":"SGD","in_stock":true},{"title":"Silver","offer_id":47202828419315,"sku":"SP4000 SILVER","price":5999.0,"currency_code":"SGD","in_stock":true},{"title":"Copper Limited Edition","offer_id":48529387094259,"sku":"SP4000 COPPER","price":6199.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_KernA_ultimaSP4000-3Finish-1.jpg?v=1771811578"},{"product_id":"astell-kern-ak-pd20","title":"Astell\u0026Kern AK PD20 Portable Digital Audio Player","description":"\u003cp\u003e\u003cstrong\u003e1-Year Local Warranty.\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAny mention of \"us,\" \"we,\" \"our,\" etc is by Astell\u0026amp;Kern, not AV One.\u003c\/em\u003e\u003cem\u003e\u003c\/em\u003e\u003cem\u003e\u003c\/em\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_AK_PD20_-_Lorikeet_1.jpg?v=1773987831\" alt=\"\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eCraft Your Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eFinding the sound that truly suits you is the first step toward the essence of music. PD20 is designed to guide you on that journey.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eOur first step in this journey was to start from the very beginning. Rather than creating a successor to the PD10, we created an entirely new audio device that will redefine your musical experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eThrough Personal Sound, you can create a sound signature tailored to your hearing, then precisely refine it to your taste using the Sound Master Wheel. An intuitive control that allows even the amplifier driving mode to be changed with a single touch. Now, music is not just something you listen to. It is something you shape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eThe first DAP to support personalised sound through a hearing test\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003e160-step EQ control via the Sound Master Wheel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eTriple AMP Class with real-time switching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eClass A current control with High \/ Mid \/ Low modes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eProprietary ESA (Enhanced Signal Alignment) technology to minimise group delay\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eAdvanced DAR\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_AK_PD20_-_Lorikeet_2.jpg?v=1773987850\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eExceptional resolution and high-purity sound, ES9027PRO Quad-DAC\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eDesigned with a singular focus on sound quality, PD20 adopts the ESS ES9027PRO DAC in a Quad-DAC configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eFour DACs operate independently to minimise inter-channel interference and deliver precise signal separation. As a result, even the finest nuances in sound are revealed with greater clarity, creating a natural, analogue-like presentation through clean, distortion-free layering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_AK_PD20_-_Lorikeet_3.jpg?v=1773987878\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\n\u003cspan style=\"mso-ansi-language: EN-US;\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eMinimising Group Delay with Proprietary ESA (Enhanced Signal Alignment) Technology\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eThrough its in-house developed ESA (Enhanced Signal Alignment) technology, PD20 significantly improves one of the fundamental challenges in audio reproduction—group delay. ESA precisely aligns frequency signals so they arrive more uniformly, minimising frequency distortion and enhancing clarity and cleanliness of sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_AK_PD20_-_Lorikeet_4.jpg?v=1773987940\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cem\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003e*What is Group Delay?\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cem\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eGroup delay refers to the difference in time it takes for each frequency to pass through an internal audio system. In simple terms, it describes a phenomenon where different frequencies within an audio signal do not arrive simultaneously, resulting in slight timing delays across frequencies.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eTo create the ultimate DAP unlike anything experienced before, we went beyond simply adopting the latest DACs and new specifications. We further evolved and applied TERATON ALPHA, Astell\u0026amp;Kern’s Ultimate Sound Solution, incorporating its advanced and innovative audio technologies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eRefined through continuous research, TERATON ALPHA represents Astell\u0026amp;Kern’s integrated audio engineering expertise. Through effective power noise reduction, efficient power consumption with stable amplification, and a precisely engineered audio output interface, it delivers sound that remains faithful to the original source.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003ca href=\"https:\/\/www.astellnkern.com\/product\/product_detail.jsp?productNo=174\" rel=\"noopener\" target=\"_blank\"\u003e\u003cem\u003e\u003cspan style=\"mso-ansi-language: EN-US;\"\u003eMore information is available on Astell\u0026amp;Kern’s official website.\u003c\/span\u003e\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Astell\u0026Kern","offers":[{"title":"Silver","offer_id":48702869307635,"sku":"PD20","price":2399.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_KernAKPD20-1.jpg?v=1773988128"},{"product_id":"astell-kern-a-ultima-sp4000t","title":"Astell\u0026Kern A\u0026ultima SP4000T Digital Audio Player","description":"\u003cp\u003e\u003cstrong\u003eCopper finish is on pre-order and stocks will arrive in mid-October 2026.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1-Year Local Warranty.\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAny mention of \"us,\" \"we,\" \"our,\" etc is by Astell\u0026amp;Kern, not AV One.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\n\u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_0.jpg?v=1782898845\" alt=\"\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_1.jpg?v=1782898872\" alt=\"\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eReimagine Analogue Sound, A\u0026amp;ultima SP4000T\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eA\u0026amp;ultima SP4000T is the culmination of nearly two years of dedication and exploration, beginning from the planning and development stages of SP3000T.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDAC, Tube, and AMP — the essential elements of high-end audio — may be accessible to anyone. Yet even with the same elements, what is ultimately created from them is an entirely different matter. Using the canvas of SP4000, the essence of digital sound, Astell\u0026amp;Kern held onto one defining question over the past two years:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e“How can we bring deeper emotion through analogue sound?”\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe answer was drawn with sincerity and endless passion, stroke by stroke. Every trace of that journey is distilled into SP4000T. Astell\u0026amp;Kern’s own analogue sound — comfortable to listen to, yet revealing new depth and character the longer you experience it.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDiscover it for yourself with A\u0026amp;ultima SP4000T.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eIndustry-first DAP with MIL-Spec Vintage Vacuum Tube Raytheon JAN6418 in Quad Configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eIndustry-first DAP with Triple Tube Mode (Triode, Ultra Linear, Pentode)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eT Series Signature feature: Triple AMP System\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eAdjustable Tube Current with Three Levels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eHigh Driving Mode, ESA, and Advanced DAR for superior sound quality\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eFull Open Android\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eEnhanced Octa-Core CPU\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_2.jpg?v=1782898923\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSP4000T Copper Edition\u003c\/span\u003e\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_2a_480x480.jpg?v=1790145163\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe A\u0026amp;ultima SP4000T Copper Edition goes beyond a simple high-end portable audio player, it serves as the ultimate culmination of years spent by Astell\u0026amp;Kern to understand different types of metals for body materials, precision machining expertise, and vacuum tube-based analogue sound philosophy. It is a model where every process, from material selection to sound tuning, is organically connected to ideally realise the sound targeted by the SP4000T, rather than a simple change in material used.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000T Copper Edition captures the unique emotion of vacuum tubes even more deeply using copper. Copper suppresses subtle signal loss with its excellent electrical conductivity, and protects sound from external noise with its superior electromagnetic shielding properties. Added to this is copper's unique rich resonance, adding natural depth to the warm analogue harmonics produced by the four vacuum tubes. The analogue emotion of vacuum tubes meets copper to maximise each other's strengths, completing the unique sound of the SP4000T Copper Edition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_2b_480x480.jpg?v=1790145240\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eCopper is theoretically one of the most ideal materials for audio use, but it is an extremely tricky metal to apply to actual products. It oxidises quickly upon contact with air and has low surface stability, making it a bigger challenge in portable devices exposed to various environments. Based on a deep understanding of material processing developed over the years, Astell\u0026amp;Kern applied a special multi-layer coating process to raw, high-purity (99.98% or more) copper materials. This process suppresses oxidation and discoloration, allowing a deep colour tone and subtle luster that is maintained for a long time without additional maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe appearance does not stop at simple material application. High-purity copper is extremely difficult to machine without subtle deformation. Drawing on years of precision-engineering expertise, Astell\u0026amp;Kern has mastered the exacting tolerances required to create the SP4000T Copper Edition, a product whose beauty deepens with time and whose enduring value extends far beyond its performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe A\u0026amp;ultima SP4000T Copper Edition was born for those who understand the essence of pure original sound and the warmth of analogue. We hope you experience firsthand the deep emotion that extends beyond music presented by the SP4000T Copper Edition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_3_600x600.jpg?v=1782898933\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eRAYTHEON JAN6418 Quad — A New Standard in Tube Configuration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000T is the industry's first DAP to feature the MIL-Spec vintage vacuum tube RAYTHEON JAN6418 in a Quad configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eWith independent dual-tube structures dedicated to the left and right channels respectively, the channel-separated design — once exclusive to home audio high-end tube amplifiers — has finally been brought to the world of DAPs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eBut the essence is not the number of tubes. Managing multiple highly sensitive vacuum tubes is far more than a simple matter of addition. It demands answers to countless questions: How do you pair tubes with subtly different noise characteristics and gain rates? How do you overcome microphonic noise? How do you minimise output variation between left and right channels?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe four tubes in the SP4000T do not operate independently — they work in a differential configuration, with each pair facing the other in mirror symmetry. In this precise balance, music signals are amplified with twice the clarity, while common-mode noise is mutually cancelled and eliminated.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eEach of the four tubes is precisely measured for its noise and gain characteristics before being paired, then fully isolated from noise through independent modular flexible PCBs and a multi-layered architecture — a design that only Astell\u0026amp;Kern, with its long experience in analogue circuits and vacuum tubes, could bring to life.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eWhen four hearts beat as one in perfect balance, the tube's signature rich harmonics resonate with the deepest, most resonant sound ever heard in the SP4000T.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000T is the industry's first DAP to feature Triple Tube Mode. Combined with the T Series Signature Triple AMP Mode and the Tube Current level adjustment first found on the SP3000T, it offers up to 54 possible combinations tailored to any genre or preference — a true Analogue Sound Palette.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eBecause how you operate the same tube fundamentally changes its tonal character, Triple Tube Mode encompasses the full expressive range of a tube amplifier. The delicacy of Triode, the balance of Ultra Linear, the dynamics of Pentode — the extraordinary analogue sound experience once exclusive to high-end tube amplifiers is now yours in the SP4000T.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_4.jpg?v=1782898979\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eTriode Mode — The Purest Voice of the Tube\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThis mode brings out the richest harmonic texture unique to vacuum tubes, letting the breath of a vocalist and the trembling of strings gently dissolve into a lush, lingering reverb.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eUltra Linear Mode — The Aesthetics of Balance\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eA design that blends the tonal colour of Triode with the output of Pentode. The sound fades softly at its edges, yet carries a firm, solid core — a well-balanced mode capable of rendering every genre with authority.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003ePentode Mode — The Most Powerful Voice of the Tube\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eMaximising tube amplifier output and dynamic range, this mode retains the tube's signature warmth while stripping away reverb — delivering a clean, powerful presence that speaks with directness and force.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cem\u003e\u003cspan lang=\"EN-SG\"\u003e* Tube Mode applies only in Tube AMP and Hybrid AMP modes.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe Perfect Harmony of Real Vacuum Tubes and OPAMP, Astell\u0026amp;Kern's TRIPLE AMP SYSTEM\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eA\u0026amp;ultima SP4000T, built on Astell\u0026amp;Kern's exclusive Teraton Alpha technology, achieves a perfect fusion of true analogue sound from the Quad-configured Real Vacuum Tubes and the dynamic sound of the OPAMP. SP4000T offers TUBE AMP mode for the authentic analogue sound of a tube amplifier, OP AMP mode delivering Astell\u0026amp;Kern's signature clarity and expansive soundstage, and HYBRID AMP mode combining the best of both analogue warmth and high-resolution output.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eExperience a distinctly differentiated sound through the T Series' signature amplifier technology.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_5.jpg?v=1782899025\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eOverwhelming High Resolution and Dynamics, OP AMP Mode\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eHigh resolution that reproduces the original sound without distortion, an unparalleled sense of space, and the ultimate in clarity and dynamics — OP AMP mode delivers the pinnacle of high-quality sound that Astell\u0026amp;Kern has pioneered across every product. The ultra-low noise and high resolution achieved through Astell\u0026amp;Kern's TERATON ALPHA technology will reveal new dimensions of music you have never experienced before, across every genre.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eTrue Analogue Sound, TUBE AMP Mode\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe warm texture and unique soundstage of a Tube Amp cannot be replicated by any modern digital amplifier. Beloved since the very first appearance of tube amplifiers, they remain unmatched in conveying the emotional depth of music. SP4000T's TUBE AMP mode pairs the deep, rich analogue sound exclusive to its Quad-configured Real Vacuum Tubes with groundbreaking low noise achieved through cutting-edge technology and craftsmanship — letting you lose yourself entirely in the music.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eAstell\u0026amp;Kern's Advanced HYBRID AMP Mode\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eBeyond just two modes — Tube AMP and OP AMP — a next-generation Hybrid AMP mode lets you handpick your preferred tonal character. Combining the analogue sensibility with the advantages of high-resolution output, the five-stage HYBRID AMP mode allows you to freely dial in the perfect sound for your taste and your music.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_6_1024x1024.jpg?v=1782899063\" alt=\"\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e2nd Generation Anti-Microphonic Noise Architecture\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe greatest technical challenge in applying vacuum tubes to a compact portable device is achieving low noise even at high resolution and high output. The SP4000T features twice as many tubes as its predecessor — four in total — and introduces an upgraded 5-stage 2nd Generation Architecture (up from the previous 4-stage design) to suppress microphonic noise (noise generated in vacuum tubes from even minor external vibrations). Drawing on Astell\u0026amp;Kern's proprietary know-how and years of experience, repeated rounds of design, testing, and verification led to the optimal solution for overcoming the structural limitations of microphonic noise.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e1. Separate modular Flexible PCB, isolated from Main PCB\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e2. Silicone base cushion for primary shock absorption of the tube\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e3. Custom-fit silicone tube around tube leads to absorb impact transmitted through the leads\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e4. Silicone damper encasing the tube, suspending it mid-air at the damper tip\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e5. Copper Shield Can covering the entire tube, suppresses even the faintest micro-noise\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_7_600x600.png?v=1782899115\" alt=\"\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eThe Most Delicate Analogue Sound, Tube Current Option\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eWe verified the safe operating range of the vacuum tubes and developed a system that adjusts the internal plate voltage across 3 levels, each of which changes the amplification of the tube amp — and with it, the tonal texture of the sound. Experience the subtle yet striking shifts in density and soundstage — the most delicate nuances a headphone or IEP can reveal — through tube current adjustment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_8_600x600.jpg?v=1782899134\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eVacuum Tube LED\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eWhile operating in Tube or Hybrid mode, the vacuum tube on the back of the SP4000T glows with a soft, warm light — amplifying the subtle, stylish analogue aesthetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cem\u003e\u003cspan lang=\"EN-SG\"\u003e* Tube LED does not illuminate in OPAMP mode.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eHEXA Audio Circuit Structure with Complete Separation of Digital and Analogue Signals\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_9.jpg?v=1782899172\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000T integrates dual AK4499EX DACs—AKM’s latest flagship, proven across Astell\u0026amp;Kern devices—paired with dedicated AK4191EQ processors for each left and right channel, forming a fully discrete audio circuit architecture.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eUnlike conventional DAPs that handle both digital and analogue signals inside the DAC, the SP4000T's audio circuit uses a dedicated digital delta-sigma modulator (AK4191EQ) to reduce noise in the digital signal before passing it to a completely isolated Analogue DAC (AK4499EX) for independent analogue signal processing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eBuilt on this physically complete separation of digital and analogue signal paths, the SP4000T's signature analogue sound is realised with greater depth than ever before.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_10.jpg?v=1782899196\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eHigh Driving Mode for the Ultimate Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000T inherits the beloved High Driving Mode from the SP4000, acclaimed by audiophiles worldwide. With twice as many OPAMPs arranged horizontally, it delivers even greater sonic density. Like a four-wheel-drive vehicle conquering rough terrain, High Driving Mode channels superior driving power to produce a stronger, more stable sound — precisely articulating even the most easily missed sonic details, and designed for a deeper, more vivid listening experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_11.jpg?v=1782899215\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eProprietary ESA (Enhanced Signal Alignment) Technology for Minimised Group Delay\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe SP4000T dramatically improves Group Delay — one of audio's most persistent challenges — through its proprietary ESA (Enhanced Signal Alignment) technology. ESA aligns frequency signals so they arrive more uniformly, minimising frequency distortion and delivering sound with greater clarity and purity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_12.jpg?v=1782899252\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cem\u003e\u003cspan lang=\"EN-SG\"\u003e*What is Group Delay?\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cem\u003e\u003cspan lang=\"EN-SG\"\u003eGroup delay refers to the difference in time it takes for each frequency to pass through an internal audio system. In simple terms, it describes a phenomenon where different frequencies within an audio signal do not arrive simultaneously, resulting in slight timing delays across frequencies.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_Kern_A_ultima_SP4000T_-_Lorikeet_13_1024x1024.jpg?v=1782899269\" alt=\"\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe Premium Leather Case\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe bundled leather case for the SP4000T was crafted using 'MINERVA' leather from 'BADALASSI CARLO', a renowned leather workshop located in the San Miniato district of Florence, Italy.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eBadalassi Carlo is a tannery that has been producing leather for over 40 years, combining the traditional Tuscan vegetable tanning methods with the theories and techniques of CARLO BADALASSI, a former leather-school professor from the Santa Croce region.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eVegetable tanning is an eco-friendly leather-making process — slow and time-intensive — that tans hides using only plant-derived tannin extracts. Badalassi Carlo leathers employ the Tuscan vacchetta technique — after removing the hair from the hide, bovine bone powder-derived tallow is added during the vegetable oil tanning process.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003ePursuing small-batch, high-quality production over mass output, the workshop is highly regarded as the preferred leather artisan for renowned brands that place a premium on material quality.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe case is available in 'Cognac' colour and wraps snugly around the entire device, offering a perfect fit while featuring a rear pattern cutout designed to showcase the tube LED glow.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cem\u003e\u003cspan lang=\"EN-SG\"\u003eMore information can be found on Astell\u0026amp;Kern’s official website.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Astell\u0026Kern","offers":[{"title":"Silver","offer_id":49334140961011,"sku":"SP4000T STAINLESS STEEL","price":4999.0,"currency_code":"SGD","in_stock":true},{"title":"Copper (Pre-order)","offer_id":51583789465843,"sku":null,"price":5799.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/Astell_KernA_ultimaSP4000T-1.jpg?v=1790144823"}],"url":"https:\/\/av1group.com.sg\/collections\/ak-price-adjustment.oembed","provider":"AV One","version":"1.0","type":"link"}