{"product_id":"woo-audio-wa33-2nd-gen","title":"[Pre-order] Woo Audio WA33 (2nd Gen) Fully-Balanced Headphone Amplifier","description":"\u003ch3 class=\"MsoNormal\"\u003e\n\u003cspan style=\"mso-ansi-language: EN-US;\"\u003ePre-order. Lead time: 3-4 weeks\u003c\/span\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e3 Years Local Warranty.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAny mention of \"us,\" \"we,\" \"our,\" etc is by Woo Audio, not AV One.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eOverview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-SG\"\u003eWA33 2nd Generation – The Pinnacle of Headphone Amplification\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSince its debut in 2017, the WA33 has been recognised as one of the world’s finest headphone amplifiers. As headphone technology evolves and advances, so must the amplifier. Today, we raise the bar with the introduction of WA33 2nd Generation, a new performance benchmark for the next generation of high-end headphones.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eTrue Ribbon, Perfectly Realised\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe WA33 2nd Gen is the first of its kind to introduce direct-drive current output for True Ribbon headphones—a technology that bypasses traditional interface limitations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eTrue Ribbon headphones utilise an ultra-thin strip of aluminium foil suspended in a magnetic field, producing exceptionally low impedance down to just 0.038Ω. As a result, standard headphone amplifiers are unable to drive them directly. An external interface is typically required to raise the impedance to a level compatible with conventional amplifiers. Our direct-drive technology enables WA33 2nd gen to operate at ultra-low impedance upholding the superior sound quality of true ribbon headphones.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe WA33 2nd Gen removes the need for intermediary devices. With a dedicated current-drive output tailored to ribbon headphones like the RAAL Immanis and Magna. The result is a pure, unaltered signal transmission delivering feather-light transients, massive dynamic range, and breathtaking realism. The way we hear music – naturally.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDual Output Modes for Maximum Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe WA33 2nd Gen offers two discrete output modes, each optimised for a specific headphone type:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eHP Mode: Traditional headphones, such as dynamic and planar magnetic\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eTR Mode: Current-drive for ultra-low impedance True Ribbon headphones\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThis dual-mode architecture ensures peak performance across a wide spectrum of headphones, without compromise to signal integrity, resolution, or safety.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eArtisan Transformers, Elevated Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eAt the core of the 2nd Gen design are newly refined, in-house output transformers, hand-wound with a precision winding topology. Compared to the original WA33, these deliver a lower noise floor, enhanced soundstage dimensionality, and a more immersive sonic experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eFor the first time, these upgraded transformers enable true current-drive capability, unlocking the full expressive potential of ribbon headphones with commanding authority.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eGraceful Power, Immaculate Control\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDriven by four 6C45 driver tubes and four 2A3 power tubes in a fully balanced Class-A push-pull configuration, the WA33 2nd Gen delivers up to 10 watts per channel with exceptional clarity and minimal distortion. It handles demanding headphones effortlessly and offers whisper-quiet operation for sensitive models.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eA LEVEL switch fine-tunes output to match your headphone’s sensitivity, ensuring the ideal balance of power and finesse.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eElegant Design, Superior Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDespite its commanding performance, the WA33 remains strikingly refined. Its dual-chassis architecture is connected through our proprietary Internal Coupling Architecture (ICA), eliminating external cabling while preserving separation between signal and power.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eThe result is a design both minimalist and monumental: fewer wires, lower interference, and a cleaner signal path—all housed in an aluminium chassis of sculpted solidity and elegance. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSetting up is effortless: insert the tubes, connect your source, and enter a world of musical realism.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cem\u003e\u003cspan lang=\"EN-SG\"\u003e*Note: A conventional amplifier has an output impedance that’s hundreds of times higher than a ribbon driver. Connecting True Ribbon headphones to such an amplifier can cause a short circuit, severely damaging both the amp and the headphones. The WA33 2nd Gen is purpose-built to drive ribbons directly and safely.\u003c\/span\u003e\u003c\/em\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\"\u003eHighlights\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cspan lang=\"EN-SG\"\u003eUser selectable outputs: \u003c\/span\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eTR (True-ribbon) direct-drive without interface \u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cspan lang=\"EN-SG\"\u003eHP (Traditional headphone)\u003c\/span\u003e\u003cspan lang=\"EN-SG\"\u003e\u003c\/span\u003e\u003cspan lang=\"EN-SG\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cspan lang=\"EN-SG\"\u003eHeadphone Outputs: \u003c\/span\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e4-pin XLR balanced for True-ribbon (TR) without interface\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e4.4mm balanced (Pentaconn®)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e4-pin XLR balanced\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003e6.3mm unbalanced TRS\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cspan lang=\"EN-SG\"\u003eSame default tubes for all versions: 6C45 driver x 4, 2A3 power x 4, 5U4G rectifier x 1\u003c\/span\u003e\u003cspan lang=\"EN-SG\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSelf-biasing with compatible tubes [chart]\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eFully balanced design, Push Pull, Class-A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003ePolytetrafluoroethylene (PTFE) tube sockets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eTKD (Tokyo Ko-on Denpa) 4-channel balanced smooth potentiometer \u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eTransformer-coupled, Point-to-Point wiring\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eInternal Coupling Architecture (ICA)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eXLR input x 2, RCA input x 1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eUser selectable HI\/LO impedance for HP headphone\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eUser selectable HI\/LO level for two levels of power output\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eHeadphones impedance: 0.038—600 Ohms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eFrequency response: 10Hz— 60kHz, -2dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eCurrent output (TR):\u003cspan style=\"mso-spacerun: yes;\"\u003e  \u003c\/span\u003e3.3A [optimised for true ribbon technology]\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003ePower output (HP): up to 10 watts per channel @32 Ohms [ideal for power-demanding headphones]\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eSignal\/Noise: \u0026gt; 95 dB, THD: \u0026lt; 0.05%, 1kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eAnodised aluminium chassis, available in black or silver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003ePower consumption: 150w\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eCompatible AC voltage: 100v – 240v\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDimensions: 17.5\"(W), 12\"(D), 13\"(H) with tubes, weight: 54 lbs for Standard, 57 lbs for Elite Edition. Open airflow is required for ventilation.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-SG\"\u003eDesigned and assembled in New York, USA\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woo Audio","offers":[{"title":"Silver \/ Standard Edition","offer_id":51411722174707,"sku":null,"price":14999.0,"currency_code":"SGD","in_stock":true},{"title":"Black \/ Standard Edition","offer_id":51411722207475,"sku":"WA33 2ND GEN STANDARD - BLK","price":14999.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2156\/8951\/files\/WooAudioWA33_2ndGen_-Silver-1.jpg?v=1789717264","url":"https:\/\/av1group.com.sg\/products\/woo-audio-wa33-2nd-gen","provider":"AV One","version":"1.0","type":"link"}