Astell & Kern AK HC5 launches with ultra-high resolution USB DAC support

Memet Deniz Yucekaya

December 8, 2025

Astell & Kern just dropped the AK HC5, a compact USB DAC that doesn’t hold back. With support for both balanced and unbalanced headphones, it’s built for serious audio heads chasing pristine sound without lugging around a full desktop setup.

AK HC5 delivers ultra-high resolution and ultra-low distortion

At its core, the Astell & Kern AK HC5 features a dedicated AK4191EQ digital processor feeding into the high-end AK4499EX DAC. This setup handles digital-to-analog conversion with impressive accuracy. The specs back it up: frequency response spans 20 Hz to 70 kHz, while distortion stays within an ultra-tight ±0.006 dB across the standard listening range of 20 Hz to 20 kHz.

Music playback isn’t just lossless, it’s enhanced. Astell & Kern includes Digital Audio Remaster (DAR) tech that can upscale PCM inputs from 48 kHz to 384 kHz. DSD audio gets the same treatment, with support for up to DSD256 on both unbalanced (3.5 mm) and balanced (4.4 mm) outputs.

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Six filters and detailed stats for serious listeners

The AK HC5 isn’t just about powe,r it’s about control. Listeners get six impulse response filters to shape sound to their preference. Balanced output users will see a signal-to-noise ratio of 125 dB with incredibly low distortion at 0.0004%. Unbalanced users get 121 dB SNR and 0.0005% distortion still top-tier by portable DAC standards.

Here’s what stands out about the AK HC5:

• Balanced 4.4 mm and unbalanced 3.5 mm headphone support
• DAR upscaling to 384 kHz PCM / DSD256
• AK4499EX DAC + AK4191EQ digital processor
• 150-step rotary volume control
• OLED screen for display
• Six customizable sound filters

Astell & Kern AK HC5 is ready for phones, PCs, and even consoles

Beyond just audiophile gear, the AK HC5 keeps things versatile. It’s compatible with Android and iOS, macOS, Windows, and even gaming consoles like the Nintendo Switch and PlayStation. It supports both UAC 1.0 and UAC 2.0, which means plug-and-play functionality across most devices.

Roon users also get a bonus: full compatibility, making this a solid pick for high-end home setups or portable rigs.

Compact design, uncompromising audio

The Astell & Kern AK HC5 bridges the gap between studio-grade sound and everyday portability. It’s precise, flexible, and built for those who won’t compromise on audio fidelity even on the go. With specs this tight, the only thing louder than the sound is the statement it makes.