Fostex HP-A4 24-Bit USB DAC Headphone Amplifier

Fostex HP-A4 24-Bit USB DAC Headphone Amplifier

Fostex HP-A4 24-Bit USB DAC Headphone Amplifier

B&H # FOHPA4 MFR # HP-A4
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Expected availability: 7-14 business days

Product Highlights

  • Up to 24-Bit/192kHz PCM Support
  • Up to 5.6MHz DSD Support
  • USB 2.0 Input
  • Optical S/PDIF Digital I/O
  • Front-Panel 1/4" Headphone Output
  • 2 Gain-Staging Levels
  • Selectable Filter
  • Mac & Windows Compatible
  • Includes USB Cable & Rubber Feet
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This item is noncancelable and nonreturnable

$0.00 Tax Collected Outside NY and NJ

You Pay: $399.99

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Fostex HP-A4 overview

  • 1Description

The HP-A4 24-Bit USB DAC Headphone Amplifier from Fostex supports PCM audio up to 24-bit/192kHz and DSD audio up to 5.6MHz. It features a front-panel 1/4" stereo headphone output, rear-panel stereo RCA outputs, and optical S/PDIF I/O. The HP-A4 has 2 gain staging levels, allowing you to boost the output of the amp by 10dB without needing to touch the volume knob. The selectable filter allows you to cut-off lower frequencies if desired. A USB cable and 4 rubber feet are included.

USB bus powered
Linear PCM audio up to 24-bit/192 kHz and DSD audio up to 5.6 MHz playback
High-resolution playback in combination with "FOSTEX Audio Player" software
HI/LO Gain selection (10 dB)
Asynchronous transfer mode using custom-made crystal
Digital filter with selectable roll-off and cut-off characteristics
Complies with USB Audio Class 2.0 on Windows XP (SP2 or later), Vista, 7, 8 and Mac OS X 10.6 or later
microSD (SDHC) card drive on the rear panel for future firmware updates
UPC: 636827304221
In the Box
Fostex HP-A4 24-Bit USB DAC Headphone Amplifier
  • 1m USB Cable
  • 4 x Rubber Feet
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Fostex HP-A4 specs

    Input
    Sampling Frequency Up to 192 kHz (PCM)
    Up to 5.6 MHz (DSD)
    Bit Depth Up to 24-bit
    Connector 1x USB high speed
    1x S/PDIF TOSlink (16/24-bit, 44.1 to 192 kHz)
    Output
    Connector 1x 1/4" (6.3 mm) stereo headphone output
    2x analog RCA outputs
    1x S/PDIF TOSlink (16/24-bit, 44.1 to 192 kHz)
    Maximum Output 100 mW (32 Ω loaded)
    RCA Outputs: 2 Vrms reference output level
    THD Headphone Output: Less than 0.04% at 1 kHz, 32 Ω loaded, 100 mW
    RCA Outputs: Less than 0.01% at 1 kHz
    Frequency Response 20 Hz to 80 kHz +/-3dB (1 kHz, 32 Ω loaded, 100 mW, FS 192 kHz)
    RCA Outputs: 20 Hz to 80 kHz +/-3 dB (at FS 192 kHz)
    General
    SD Card Slot 1x microSD slot (for firmware updates)
    Compatibility Windows: XP (SP2 or later), Vista, 7, 8
    Mac: OS X 10.6 or later
    Power USB bus powered
    Power Consumption 2.5 W
    Dimensions (W x H x D) 4 x 1 x 6" (113 x 34 x 155 mm), excluding protruded parts
    Weight 17 oz (500 g), approximate
    Packaging Info
    Package Weight 1.7 lb
    Box Dimensions (LxWxH) 10.3 x 6.3 x 1.9"

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