Model HP-A4 is a new, improved version of the acclaimed HP-A3. It offers up to DSD 5.6MHz and PCM 192kHz for superior audio playback functionality as well as the sophisticated and class-leading appearance of the flagship HP-A8C. – See more at: http:///docs/products/HP-A4.shtml#1
Features:
- USB buss powered operation without AC adapter
- Linear PCM audio up to 24bit/192kHz and DSD audio up to 5.6MHz playback (requires a DSD playback software on PC such as the upcoming FOSTEX Audio Player. Both DoP and ASIO acceptable.)
- Quick and easy hi-resolution playback in combination with FOSTEX Audio Player software
- HI/LO Gain selection (10dB) for wider range of headphones
- Asynchronous transfer mode by using the custom made crystal
- Digital Filer selecting Roll-off characteristics and Cut-off characteristics according to the audio source
- Complies with USB Audio Class 2.0 on Windows XP (SP2 or later) / Vista / 7 / 8 and MacOS X 10.6 or later.
- MicroSD (SDHC) card drive on the rear panel for future firmware update (not for audio playback).