Fostex HP-A4

General Features:

• Fostex HP-A4 Buss-Powered 24-bit DAC Desktop Headphone Amplifier
• 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 updates
• Authorized Internet Dealer
• 1-year Manufacturer's Warranty

Product Specifications:

• Input:
• USB port sampling frequency up to 24bit/192kHz(PCM), 5.6MHz(DSD)
• Interface USB high speed
• Digital Connector: optical, square
• Format S/PDIF (16bit/24bit: 44.1 – 192kHz)
• 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
• Format S/PDIF (16bit/24bit: 44.1 - 192kHz)
• 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) excluding protruded parts
• Weight: approx. 500g