AK HC2
The AK HC2 is a compact USB-C dual DAC cable with a 4.4mm balanced headphone output. It lets phones, tablets, Windows PCs and Macs drive wired Hi-Fi headphones and earphones, and suits listeners who have lost the headphone jack on their devices.
- Dual Cirrus Logic CS43198 DAC
- PCM up to 32-bit/384kHz, native DSD256
- 4.4mm balanced output, 4Vrms (no load)
- USB-C plug and play, powered by the host device
- Included USB-C to Lightning adapter for iOS
- Roon Tested; optional Android volume app
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The HC2 is a short USB-C cable with a built-in DAC stage. It uses two Cirrus Logic CS43198 DACs and decodes PCM up to 32-bit/384kHz and native DSD up to DSD256. The audio circuit sits at the output end of the cable instead of in the USB plug. Digital signal travels through a dual shielded cable first and is converted to analog afterwards, which is meant to keep noise down.
Output is through a 4.4mm balanced jack, rated at 4Vrms with no load and 1.5 ohm output impedance. Both TRS and TRRS 4.4mm headphones can be used, but the in-line controls and microphone of TRRS models are not supported. The body is a hexagonal aluminum prism in dark silver, and the cable is tin-coated copper wrapped in aluminum film.
It is plug and play with USB-C devices and takes its power from the host, so it needs no charging. iOS devices connect with the included USB-C to Lightning adapter. Windows installs the driver automatically, and a separate USB DAC driver is needed for high-resolution files. An optional Android app gives finer volume control. The unit is Roon Tested.
Vidéo
Spécifications
- Marque
- Astell&Kern
- Modèle
- AK HC2
- Catégorie
- Accessoires › Câbles
Audio
- DAC
- CS43198 Dual
- Sample rate (PCM)
- Up to 32bit/384kHz
- Sample rate (DSD, native)
- DSD64 (2.8MHz), DSD128 (5.6MHz), DSD256 (11.2MHz), Stereo
- Frequency response
- ±0.011dB (20Hz~20kHz), ±0.145dB (20Hz~70kHz), Balanced
- Signal to noise ratio
- 122dB @ 1kHz, Balanced
- THD+N
- 0.0004% @ 1kHz, Balanced
- IMD SMPTE
- 0.0003%, 800Hz 10kHz (4:1), Balanced
Inputs
- Input
- USB Type-C (Windows 10/11, Android, iOS smartphone and tablet, macOS)
Outputs
- Headphone output
- 4.4mm balanced
- Output impedance
- 1.5 ohm (4.4mm)
- Output power or voltage
- 4Vrms (no load)
Connectivity
- Compatible systems
- Android, iOS, Windows 10/11, macOS
- iOS connection
- Included USB-C to Lightning adapter
- Roon
- Roon Tested
Physical
- Body material
- Aluminum
- Body color
- Dark Silver
- Dimensions, USB plug
- 12 x 21 x 6.5mm
- Dimensions, 4.4mm headphone end
- 22.8 x 60 x 12.1mm
- Weight
- About 29g
Power
- Power source
- Powered by the connected playback device
Software
- Android app
- Optional app for detailed volume control
In the box
- Adapter
- USB-C to Lightning adapter