AK HC4 HiFi USB DAC

AK HC4 Astell&Kern HiFi USB Dac.  The AK HC4 continues the advantages of its highly acclaimed predecessors, delivering even more perfected sound in various usage scenarios through advanced design.

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Featuring Dual Output, compatible with most IEMs and headphones, the AK4493S DAC for true Hi-Fi sound, and Digital Audio Remaster technology, it brings the level of Hi-Fi sound previously exclusive to Astell&Kern's digital audio players to the AK HC4. Enjoy Hi-Fi sound like never before.  

• 3.5mm, 4.4mm Dual Output
• AKM AK4493S
• DAR (Digital Audio Remaster)
• Supports iOS devices
• Interchangeable Cable (Type-C / Lightning Cable Included)
• Supported UAC1.0 (For Gaming System)
• Roon Tested

AKM's DAC has earned much love when featured in Astell&Kern's digital audio players, but due to the small size of USB DAC Cables and the challenges of amp design, it has been difficult to implement in the USB DAC Cable lineup until now.

The AK4493s DAC from AKM, used in the AK HC4, is further enhanced with improved noise control, lower power design, and ultra-precise amp design technology, delivering exceptionally high-quality Hi-Fi sound.

In order to gain stable output power and ultra-high-quality Hi-Fi sound through the Dual Output, AK HC4 introduces an exclusive AMP circuitry that supersedes the standard built-in DAC AMP.  We used micro resistors and capacitor parts to achieve a small footprint without compromising performance. Carefully selected ultra-small tantalum capacitors, which are used in AK player products to create a stable system and audio performance by controlling the power fluctuations.

The AK HC4 is equipped with digital audio remaster (DAR) technology, which was only applicable to the latest digital audio players from Astell&Kern. DAR technology is developed to upsample the sample rate of the sound source being played to go beyond the limits of the source format. The high sample rate allows more refined play and offers delicate and analog-like original sound, The DAR slide key on the side of the product gives you a more intuitive selection of DAR options

AK HC4 Specs:

• Body: Aluminum
  
• Output: 3.5mm SE 2v /  4.4mm BAL 3v
• Input: usb-c
• SNR: 118dB
• Crosstalk:  -134dB
• THD: 0.0009%
• Output Imp: SE 0.9 ohm / BAL 1.6 ohm
  
• Weight: 31g
• Warranty: 1 year

Good to know: Please note that the volume will be fixed to the maximum level if you allow access with Tidal and some other apps on Android devices.

Make sure to check the volume on your connected player device before using headphones or earphones. Some devices may automatically set the output level to maximum volume when the cable is connected. Listening to headphones or earphones at maximum volume may damage your hearing. Please verify the volume level before each use.

Do not connect the USB-C DAC Cable to an Astell&Kern player. When connecting the cable to a player and using it as an external DAC, the output volume will be fixed at the maximum volume setting. It is not possible to adjust the volume through the Astell&Kern player. Listening at maximum or a high-volume setting may cause serious damage to your hearing. Astell&Kern, its affiliates and agencies, cannot be held liable for any damage or injuries from negligent or inappropriate use.