Astell&Kern / IRVAKHC2MB

Astell&Kern / AK HC2 Midnight Blue is a limited model of Astell&Kern's masterpiece portable USB-DAC ""AK HC2"".

■Limited model of Astell&Kern's masterpiece portable USB-DAC ""AK HC2""
・Limited color of Astell&Kern's masterpiece portable USB-DAC ""AK HC2"". The AK HC2 is equipped with Cirrus Logic's Master HIFI? DAC CS43198 in a dual DAC configuration, specializing in 4.4mm 5-pole balanced output, and is one of the most popular high-resolution compatible portable USB-DACs of the same brand, achieving amazing LR separation while achieving low noise, low distortion, and high output. Also compatible with iOS devices using USB Type-C and the included USB Type-C to Lightning conversion adapter. With a bus-powered power supply, you can easily enjoy Hi-Fi sound that approaches a high-end high-resolution audio player by simply plug-and-play by connecting it to a compatible device. The main body color is ""Midnight Blue,"" which evokes the rush of music. Finished with an original design marked with the Astell&Kern symbol logo.

■Base model: AK HC2
・AK HC2 is equipped with Cirrus Logic's Master HIFI? DAC chip CS43198 in a dual DAC configuration and supports native playback of up to PCM 384KHz/32bit and DSD256. By specializing in 4.4mm 5-pole balanced output, this portable USB-DAC achieves a high level of low noise, low distortion, and high output while achieving amazing LR separation. Also compatible with iOS devices using USB Type-C and the included USB Type-C to Lightning conversion adapter. With a bus-powered power supply, you can easily enjoy Hi-Fi sound that approaches a high-end high-resolution audio player by simply plug-and-play by connecting it to a compatible device. In addition, it is compatible with the dedicated volume control cooperation app ""AK HC"" newly developed for Android OS, allowing detailed volume adjustment.

■Housing color
・The color of the aluminum housing is ""Midnight Blue"", which is inspired by the fast-paced feeling of music. The included USB Type-C to Lightning conversion adapter also has a unified color to enhance the overall sense of unity.

■Body design
・The Astell&Kern symbol logo is marked on the body surface. By intentionally not marking the connector part, we have created a stylish finish.

■Package
-A specially designed package that uses the same Midnight Blue color as the main body and is marked with the Astell&Kern symbol logo.

■Volume control function using Android exclusive app “AK HC”
- When using a USB-DAC with an Android device, compatibility issues may occur, such as the connected device automatically setting the volume to maximum or playing at a low volume. In order to solve these problems and make it possible to more finely adjust the volume of AK HC2, a volume control smartphone application for Android OS called ``AK HC'' has been released.

■Color: Midnight Blue
■Body material: Aluminum
■DAC: Cirrus Logic CS43198×2 (Dual-DAC)
■Supported sampling rate: PCM maximum: 384KHz/32bit
■DSD maximum: DSD256 (11.2MHz/1bit) stereo
■Input: USB Type-C / Lightning (using the included conversion connector)
■Supported OS: Windows 10, 11 / MAC OS X 10.7 or higher, Android OS / iOS (smartphones & tablet PCs)
■Output: 4.4mm 5-pole balanced output (with GND connection)
■Size (W x H x D): USB plug section: 12mm x 21mm x 6.5mm, headphone output section: 22.8mm x 60mm x 12.1mm
■Weight: Approx. 29g
■Output level: Balanced 4Vrms (no load)
■Frequency characteristics: ±0.011dB (20Hz~20kHz) balanced, ±0.145dB (20Hz~70kHz) balanced
■S/N ratio: 122dB @ 1kHz, balanced
■Crosstalk: -146dB @ 1kHz, balanced
■THD+N: 0.0004% @ 1kHz, balanced
■IMD: 0.0003% 800Hz 10kHz (4:1) Balance
■Output impedance: Balanced 4.4mm (1.5Ω)
■Accessories: USB Type-C to Lightning conversion adapter (Midnight Blue), quick guide, warranty card
■Country of origin: South Korea
■Manufacturer's warranty: 1 year for main unit / 90 days for accessories