Product Overview
The Fostex HP-A4 is a 24-bit DAC headphone amplifier that offers Direct Stream Digital audio up to 5.6 MHz and Linear Pulse Code Modulation audio up to 24-bit / 192 kHz. The HP-A4 is USB bus-powered without the need for an AC adapter and offers a sleek, sophisticated appearance that will fit in well with the most discerning of tastes.
Fostex HP-A4 Includes:
- 1x USB Cable (1.0m)
- 4x rubber foot
- Manual
Fostex HP-A4 Features:
- USB bus-powered operation without AC adapter
- Linear PCM audio up to 24-bit / 192 kHz and DSD audio up to 5.6 MHz playback*
- *NOTE: Requires a DSD playback software on PC such as the "FOSTEX Audio Player." Both DoP and ASIO acceptable
- HI/LO Gain selection (10 dB) for wide range of headphone compatibility
- Asynchronous transfer mode by using the custom made crystal
- Digital Filter selecting Roll-Off characteristics andCut-Off characteristics according to the audio source
- Complies with USB Audio Class 2.0 on Windows XP (SP2or later) / Vista / 7 / 8 and Mac OSX 10.6 or later**
- **NOTE: Requires the dedicated driver for Windows. Not compatible with Windows XP 64-bit.
- MicroSD (SDHC) card drive on the rear panel for futurefirmware updates***
- ***NOTE: Does not playback audio data stored on a microSD card
Fostex HP-A4 Specifications:
- Input:
- USB Port Sampling Frequency: Up to 24-bit / 192 kHz (PCM), 5.6 MHz (DSD)
- Interface: USB High Speed
- Digital Connector: Optical, Square
- Format: S/PDIF (16-bit / 24-bit: 44.1 kHz - 192 kHz)
- Output:
- Phones Connector: Stereo Phone
- Max Output: 100 mW (32 Ohm loaded)
- THD: Less than 0.04% at 1 kHz, 32 Ohm loaded, 100 mW
- Frequency Response: 20 Hz - 80 kHz +/- 3 dB (1 kHz, 32 Ohm loaded, 100 mW, FS 192 kHz)
- Analog Connector: RCA Pin
- Reference Output Level: 2 Vrms
- THD: less than 0.01% at 1 kHz
- Frequency Response: 20 Hz - 80 kHz (at FS 192 kHz)
- Digital Connector: Optical, square
- Format: S/PDIF (16-bit / 24-bit: 44.1 kHz - 192 kHz)
- General:
- MicroSD Card Slot: microSD Card (SDHC)
- Power: USB bus-powered
- Power Consumption: 2.5 W
- Dimensions (WxHxD): 113mm x 34mm x 155mm
- Weight: Approx. 500 g