Fostex HP-A4 24-Bit DAC Headphone Amplifier
Description
Description
Fostex HP-A4 24-Bit DAC Headphone Amplifier
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.
Key Features
- USB buss powered operation without AC adapter
- Linear PCM audio up to 24bit/192kHz and DSD audio up to 5.6MHz playback
- 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 Filter 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
Technical Specifications
Input
USB port sampling frequency
up to 24bit/192kHz(PCM), 5.6MHz(DSD)
Interface
USB high speed
Digital Connector
optical, square
Output
Phones Connector
Stereo phone
Max Output
100mW (32-ohm loaded)
THD
less than 0.04% at 1kHz, 32-ohm loaded, 100mW
Frequency response
20Hz - 80kHz +/-3dB (1kHz, 32ohm loaded, 100mW, FS 192kHz)
Analog Connector
RCA Pin
Reference output level
2Vrms
THD:
less than 0.01% at 1kHz
Frequency response
20Hz -- 80kHz +-3dB (at FS 192kHz)
Digital Connector
Optical, square
General
MicroSD card slot
microSD card (SDHC)
Power
USB buss powered
Power Consumption
2.5W
Accessories
1 x USB cable (1.0m), 4 x rubber foot, manual
Dimensions
113mm(W) x 34mm(H) x 155mm(D)
Weight
approx. 500g
Payment & Security
Payment methods
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