Pre-order. Stocks will arrive mid-October 2026.

1-Year Local Warranty.

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Compact in Form, Infinite in Sound

PD5

Compact in Form, Infinite in Sound

Engineered for effortless portability, it delivers music with total freedom and comfort—without ever compromising on performance or sound quality.

Designed to fit comfortably in one hand, the PD5 combines a compact form factor with all-day battery life. Going far beyond the physical limits of its size, it delivers Astell&Kern’s signature deep, detailed, and rich sound.

Achieving the perfect harmony between portability and high performance, the PD5 brings the ultimate audio experience into your everyday life.

• Octa-DAC (Switchable Quad / Octa DAC)
• Up to 28 Hours of Continuous Playback
• EnviroTune: Analyses ambient noise to automatically deliver optimal sound
• Compact Design that fits perfectly in one hand

Octa-DAC, Uncompromised Sound

Engineered with an Octa-DAC architecture, it delivers extraordinary audio fidelity—without sacrificing power or precision.

Powered by eight CS43198 DACs, the PD5 achieves an expansive dynamic range with exceptional channel separation. Going far beyond conventional signal processing, it unveils the purest sound, capturing even the most subtle musical nuances.

Unlocking up to 8Vrms of output to effortlessly drive any headphone, the PD5 brings Astell&Kern’s true signature sound into complete perfection.

Dual Drive Mode: Tailored to Every Listening Environment

Dual Drive Mode allows users to select the optimal DAC configuration for any listening environment or preference. Discover the ideal balance between performance and power efficiency.

Quad-DAC

• Balanced Sound (Natural & Smooth)
• Efficient Power
• 6Vrms
• 28 Hours Playback

Octa-DAC

• Ultimate Sound (Greater Detail)
• Maximum Performance
• 8Vrms
• 15 Hours Playback

Quad-DAC

Astell&Kern’s signature sound with a natural and smooth sonic character, optimised for efficient power consumption and extended playback time.

Octa-DAC

Delivers extraordinary audio fidelity with an expansive dynamic range and exceptional channel separation.

Longer, More Convenient Listening: Up to 28 Hours of Continuous Playback

Offering up to 28 hours of continuous playback, it allows complete immersion in music without worrying about battery life. Stay focused purely on your sound with a single charge—from long commutes to travel, and all the way until bedtime. Weighing approximately 200g with a curved 4.1-inch display that fits naturally in the hand, it delivers exceptional portability and a comfortable grip for effortless listening over extended periods.

Smart Sound that Understands Your Environment, EnviroTune

A blend of ‘Environment’ and ‘Tune,’ EnviroTune is an intelligent sound-tuning technology that analyses listening surroundings in real time to restore musical details easily lost to ambient noise.

The built-in microphone detects changes in ambient noise in real time, analysing input sound by frequency band to automatically compensate for frequencies masked by noise.

Without unnecessarily raising the volume, the sound continuously adapts to your environment—allowing complete immersion in the original detail of your music, anywhere, anytime.

*EnviroTune is supported on PCM audio up to 24-bit/192kHz.

Minimising Group Delay with Proprietary ESA (Enhanced Signal Alignment) Technology

The PD5 drastically improves group delay—a chronic issue in audio systems—through proprietary ESA (Enhanced Signal Alignment) technology.

By aligning frequency signals to arrive with greater uniformity, ESA minimises frequency distortion and elevates sound quality to be clearer and more pristine.

*What is Group Delay?

It refers to the time difference required for various frequencies to pass through an audio system, causing sound signals across different frequencies to arrive at slightly different times rather than simultaneously.

General Specifications

Model: PD5

Body Colour: Silver

Body Material: Aluminium

Display: 4.1inch 720 x 1280 Touch screen

Supported Audio Formats: WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF

Sample rate:

PCM: 8kHz ~ 384kHz (8/16/24/32bits per Sample)

DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo

Output Level:

[Quad] Unbalanced 3Vrms │ Balanced 6Vrms (Condition No Load)

[Octa] Unbalanced 4Vrms │ Balanced 8Vrms (Condition No Load)

CPU: Octa-Core

DAC: Cirrus Logic CS43198 x8 (Octa-DAC)

Decoding: Support up to 32bit / 384kHz Bit to Bit playback

Input: USB Type-C input (for Charging & PC & MAC)

Outputs: Unbalanced Out (3.5mm), Balanced Out (4.4m, only 5-pole supported)

Wi-Fi: 802.11 a/b/g/n/ac (2.4/5GHz)

Bluetooth: V5.3 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC, LHDC, SBC, AAC)

Dimensions: 2.74” (69.7mm)[W] x 4.71” (119.7mm)[H] x 0.63” (16.1mm)[D]

Weight: about 6.98oz (198g)

Feature Enhancements: Firmware upgrade supported (OTA)

Operating Temperature: 0℃ ~ + 40℃ (32℉~ 104℉)

Audio Specifications

Frequency Response:

±0.011dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.011dB (Condition : 20Hz~20kHz) Balanced

±0.130dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.143dB (Condition : 20Hz~70kHz) Balanced

S/N: 125dB @ 1kHz, Unbalanced │ 129dB @ 1kHz, Balanced

Crosstalk: -145dB @ 1kHz, Unbalanced │ -147dB @ 1kHz, Balanced

THD+N: 0.0006% @ 1kHz, Unbalanced │ 0.0006% @ 1kHz, Balanced

IMD SMPTE: 0.0003% 800Hz 10kHz (4:1) Unbalanced │0.0001% 800Hz 10kHz (4:1) Balanced

Output Impedance: Unbalanced Out 3.5mm (0.6ohm) │ Balanced Out 4.4mm(1.2ohm)

Clock Source

Clock Jitter: 25pS (Typ)

Reference Clock Jitter: 250 Femto Seconds

Storage Capacity

Built-in Memory: 64GB [NAND]

External Memory: microSD x1 (Max. 1.5TB)

Battery

Capacity: 4,000mAh 3.8V Li-Polymer

Charge Time: about 2.5 hours (PD3.0 Charging)

Playback Time: about 28 hours (Standard: FLAC, 16bit, 44.1kHz, Vol.50, Quad-DAC, LCD Off)

More information is available on Astell&Kern official website.