AK HC4
A compact USB-C DAC cable with an AKM AK4493S chip and a headphone amp, offering 3.5mm unbalanced and 4.4mm balanced outputs. It suits smartphone, PC and game-console users who want better sound from wired IEMs and headphones.
- AKM AK4493S DAC, PCM up to 32bit/384kHz, native DSD256
- 3.5mm unbalanced (2Vrms) and 4.4mm balanced (3Vrms) outputs
- DAR upsampling with slide switch and LED status indicator
- UAC 1.0 and 2.0 support for consoles, phones and PCs
- Interchangeable Type-C and Lightning cable included
- Aluminum body, 31g, Roon Tested
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The HC4 is a small USB DAC and amplifier built into a cable. It uses an AKM AK4493S converter and a dedicated amp circuit, and it handles PCM up to 32-bit/384kHz and native DSD up to DSD256. Two headphone outputs are fitted, a 3.5mm unbalanced jack and a 4.4mm balanced jack, so most IEMs and headphones can be plugged in without adapters.
A Digital Audio Remaster (DAR) function upsamples playback to 352.8kHz or 384kHz for PCM and to DSD256 for lower DSD rates. It is switched on or off with a slide key on the side. A front LED shows the playback state: white for standby, red for PCM, blue for DSD and green for UAC 1.0. The DAC is placed at the rear output end of the cable, after a dual-shielded cable run, to keep noise down.
The cable is interchangeable, with both USB Type-C and Lightning versions supplied, so it works with Android and iOS devices, Windows 10/11 and macOS. It supports both UAC 1.0 and UAC 2.0, which allows use with game consoles such as PlayStation and Switch. It is Roon Tested.
Video
Specifikationer
- Märke
- Astell&Kern
- Modell
- AK HC4
- Kategori
- Hörlurar
Audio
- DAC
- AKM AK4493S
- PCM sample rate
- 8kHz ~ 384kHz (8/16/24/32bits per Sample)
- DSD (native)
- DSD64 (2.8MHz), DSD128 (5.6MHz), DSD256 (11.2MHz), Stereo
- Digital Audio Remaster (PCM)
- 44.1kHz range to 352.8kHz; 48kHz range to 384kHz
- Digital Audio Remaster (DSD)
- Files below DSD256 upconverted to DSD256
- Frequency response (20Hz~20kHz)
- ±0.062dB Unbalanced / ±0.063dB Balanced
- Frequency response (20Hz~70kHz)
- ±0.066dB Unbalanced / ±0.067dB Balanced
- Signal to noise ratio
- 118dB @ 1kHz, Unbalanced / 118dB @ 1kHz, Balanced
- Crosstalk
- -134dB @ 1kHz Unbalanced / -136dB @ 1kHz Balanced
- THD+N
- 0.0005% @ 1kHz Unbalanced / 0.0009% @ 1kHz Balanced
- IMD SMPTE
- 0.0005% Unbalanced / 0.0004% Balanced (800Hz 10kHz, 4:1)
Outputs
- Headphone outputs
- 3.5mm (Unbalanced), 4.4mm (Balanced, Only 5-pole supported)
- Output level (no load)
- Unbalanced 2Vrms / Balanced 3Vrms
- Output impedance
- Unbalanced 3.5mm 0.9ohm / Balanced 4.4mm 1.6ohm
Connectivity
- Input
- USB Type-C (Supports UAC 1.0 and UAC 2.0)
- Cable
- Interchangeable Type-C / Lightning cable
- Compatibility
- Android and iOS devices, Windows 10/11, macOS
Physical
- Body color
- Moon Silver
- Body material
- Aluminum
- Dimensions
- 29.5mm[W] x 64.5mm[H] x 14.5mm[D]
- Weight
- About 1.09oz (31g)
In the box
- Cables
- Type-C / Lightning cable included