Astell & Kern PD5 Digital Audio Player

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: Analyzes 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.

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 analyzes 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, analyzing 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.

Perfect Fit. Natural Feel

It may look like an ordinary case at first glance, but no detail was overlooked.
Designed to seamlessly complement the PD5, this case is crafted in South Korea using premium TPU raw materials from Covestro, Germany.
The soft, flexible material provides a snug, seamless fit with comfortable button feedback and reliable protection. Its high transparency preserves the original beauty of the device's design.
While TPU naturally discolors over time, a special UV stabilizer is applied to slow down discoloration and keep the case looking clear and clean for longer.

DESIGN

Grip Control

The design concept of the PD5 is 'Grip Control.' It embodies lightweight portability to seamlessly accompany you anywhere, alongside the sleek, minimalist design identity defining the PD lineup.
Featuring a perfectly balanced feel in hand and a compact form factor, it delivers exceptional grip. The curved 4.1-inch display optimized for DAP usage offers effortless readability and tactile control, even during long listening sessions.

At the top, the microphone for EnviroTune and the power button are symmetrically arranged to achieve balanced aesthetic harmony—integrating functional elements into a single refined structure.
Effortless to carry and designed for daily enjoyment, the PD5 is lifestyle audio made to bring hi-fi DAP listening seamlessly into your everyday life.

Specification

CPU	Octa-Core
Operating System	Windows 8,10,11(32/64bit) MAC OS X 10.7
DAC	Cirrus Logic CS43198 x8 (Octa-DAC)
Supported Formats	WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF
Internal Storage	64GB [NAND]
Battery Life	about 28 hours (Standard : FLAC, 16bit, 44.1kHz, Vol.50, Quad-DAC, LCD Off)
Charge Time	About 2.5 hours (PD3.0 Charging)
Weight	6.98oz
Dimensions	2.74” x 4.71” x 0.63”
Inputs and Outputs
Digital Audio Inputs	USB Type-C input (for Charging & PC & MAC)
Analog Audio Outputs	Unbalanced Out (3.5mm), Balanced Out (4.4m, only 5-pole supported)
Output Power	[Quad] Unbalanced 3Vrms │ Balanced 6Vrms (Condition No Load) [Octa] Unbalanced 4Vrms │ Balanced 8Vrms (Condition No Load)