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Fostex HP-A4BL High-Resolution DAC / Balanced Headphone Amplifier

Product #42894 | SKU HP-A4BL | Fostex
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Features

  • Balanced Headphone Output: 4-Pin XLR
  • Unbalanced Headphone Output: 1/4"
  • Up to 24-Bit/192 kHz PCM Support
  • Up to 11.2 MHz DSD Support
  • USB 2.0 Input

Description

The HP-A4BL High-Resolution DAC / Balanced Headphone Amplifier from Fostex is a high resolution digital-to-audio convertor and balanced headphone amplifier well suited for professional audio engineers, mastering engineers, and audiophiles. The HP-A4BL supports PCM audio up to 24-bit/192 kHz and DSD audio up to 11.2 MHz. The front-panel offers a balanced 4-pin XLR headphone output, an unbalanced 1/4" stereo headphone output, while the rear-panel offers stereo RCA outputs, optical S/PDIF I/O, and a USB 2.0 connector. The HP-A4BL has 2 gain staging levels, allowing you to boost the output of the amp by 10 dB without needing to touch the volume knob. The selectable filter allows you to cut-off lower frequencies if desired. The HP-A4BL ships with a power supply, USB cable, and 4 rubber feet.

Features

  • Equipped with 4-pin XLR balanced output
  • 1/4" / 6.35mm unbalanced output
  • Newly developed audio-grade capacitors
  • Highly precise crystal with low phase noise
  • Playback 24-bit/192 kHz PCM and 11.2 MHz DSD audio
  • High performance DAC (Burr-Brown PCM1792A)
  • Asynchronous transfer up to 192 kHz/24-bit compatible with USB Audio 2.0
  • HI/LO Gain selection (10 dB) for wider selection of headphones
  • Digital Filter selecting Roll-Off characteristics and Cut-off frequencies

Specifications

Input
Sampling Frequency PCM: 44.1 to 192 kHz
DSD: 2.8 to 11.2 MHz
Bit Depth 16/24-bit
Connector 1x USB 2.0 high speed
1x S/PDIF Optical (Square) (16/24-bit, 44.1 to 192 kHz)
Output
Connector Balanced Headphone: XLR (4-pin) Unbalanced Headphone: 1/4" / 6.3 mm Line Output: 2x analogue RCA outputs S/PDIF Digital: Optical (Square) (16/24-bit, 44.1 to 192 kHz)
Maximum Output Headphones: 300 mW or more (32 Ohms loaded)
RCA Reference Output Level: 2 Vrms (0 dbFS)
Load Impedance Headphones: 16 to 600 Ohms Line Output: <10 kOhms
THD Headphone Outputs: Less than 0.04% at 1 kHz
RCA Outputs: Less than 0.01% at 1 kHz
Frequency Response Headphones: 20 Hz to 80 kHz ±3 dB (32 Ohms, 100 mW)
RCA Outputs: 20 Hz to 80 kHz ±3 dB
Digital: 44.1 to 192 kHz
General
SD Card Slot 1x microSD slot (for firmware updates)
Format: FAT32 Compatible Card: microSD card (SDHC), up to 32 GB
Power Power Supply: 12 VDC, 1.5 A
Dimensions (W x H x D) 150.0 x 34.0 x 157.0 mm, excluding protruded parts
Weight 630.0 g, approximate

In The Box

  • Fostex HP-A4BL High-Resolution DAC / Balanced Headphone Amplifier
  • AC Power Adapter
  • USB Cable
  • 4 x Rubber Feet
  • Limited 1-Year Warranty

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Details

  • Product: Fostex HP-A4BL High-Resolution DAC / Balanced Headphone Amplifier
  • Manufacturer: Fostex
  • Model: HP-A4BL
  • SKU: HP-A4BL
  • RM Product #: 42894

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