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The HP-A3 32-Bit D/A Converter with Headphone Amp from Fostex is a digital to analog audio converter designed for computer audio output. It is capable of handling up to a 24-bit, 96kHz digital audio source.
It features two analog outputs choices: two RCA line outs or a ¼" headphone out, powered by its built-in headphone amplifier. The HP-A3 has two digital input options; either USB or optical S/PDIF. It also features an S/PDIF digital output, which allows the unit to act as a digital to digital converter from USB to optical. The unit is USB bus powered regardless of input routing choice and does not have a separate AC input. The input and output routing is selectable by front panel selector buttons.
USB Bus power without using bulky AC adapter for ease of use with a laptop
Equipped with high-grade AKM 32bit DAC AK4390
Power supply is built-in to reproduce the stable electrical supply
Condensers and OP amp are designed exclusively for audio applications
USB or digital (optical) input selector button
Headphones or RCA (analog) output selector button
Doubles as digital to digital converter from USB digital audio to optical output
Fixed sampling rate of 96 kHz with USB input
Compatible with Mac OSX and Windows XP or later
In the Box
Fostex HP-A3 32-Bit D/A Converter with Headphone Amp
3' USB Cable
Limited 1-Year Warranty
Table of Contents
1x USB 2.0 full speed 1x S/PIDF digital connector: optical, square (32 kHz to 96 kHz)
1x 1/4" headphone output 2x RCA line outputs
Headphone output: 100 mW (32 Ω loaded)
Line output: -10 dBV
Total Harmonic Distortion
Headphone output: < 0.01% at 1 kHz, 32 Ω loaded, 100 mW Line outputs: < 0.01% at 1 kHz
Headphone output: 20 Hz to 20 kHz +/- 0.3 dB (32 Ω loaded, 100 mW) Line outputs: 20Hz to 20kHz +- 0.3 dB
Mac: OSX Windows: XP or later USB port or S/PDIF optical output