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Fostex HP-A4BL 24bit Balanced Amp/DAC

Product SKU: AMS-HP-A4BL

 
Fostex HP-A4BL 24bit Balanced Amp/DAC
Fostex HP-A4BL 24bit Balanced Amp/DAC
Fostex HP-A4BL 24bit Balanced Amp/DAC

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Product Details

(Specifications and Design of this product are subject to change without notice)
↓ Details provided by Fostex ↓

Main Features

  • Equipped with 4-pin XLR balanced output
  • Newly developed audio-grade capacitor is adopted
  • Highly precise crystal with low phase noise is adopted
  • Playback 24bit/192kHz PCM and 11.2MHz DSD audio

Model HP-A4BL, designed being based on the current HP-A4, is an affordable USB DAC & Headphone amp offering balanced connection for headphones that is becoming more popular in the market. In addition to the balanced headphone out, it also complies with DSD Audio up to 11.2MHz.

In Detail

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

Specifications

Input
[USB] terminal
Interface :USB 2.0 Hi Speed
Sampling Frequencies :PCM 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz DSD 2.8MHz, 5.6MHz, 11.2MHz
Quantization :16bit, 24bit
[Digital In] terninal
Connector :Optical, Square
Format :S/PDIF
Sampling Frequencies :44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
Quantization :16bit, 24bit

Output
[PHONES BALANCED] terminal
Connector :XLR (4-pin)
Maximum output :300mW or more (32 ohm)
Load impedance :16 - 600 ohm
THD :less than 0.04% (at 1kHz)
Frequency Response :20Hz - 80kHz (+-3dB, 32 ohm, 100mW)

[PHONE UNBALANCED] terminal
Connector :1/4" stereo jack
Maximum output :150mW or more (32 ohm) Applicable load impedance :16 - 600 ohm
THD :less than 0.04% (at 1kHz)
Frequency Response :20Hz - 80kHz (+-3dB, 32 ohm, 100mW)

[OUTPUT] (L,R) terninal (Analog output) Connector :RCA Pin
Reference output level :2Vrms (0 dBFS) Applicable load impedance :less than 10k ohm THD :less than 0.01% (at 1kHz)
Frequency Response: 20Hz-80kHz (+3dB)

[DIGITAL OUT] terminal
Connector :Optical (square)
Format :S/PDF
Frequency Response :44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
Quantaization :16, 24bit


General
[microSD] card slot (for firmware upgrade only) Format: FAT32
Compatible card: microSD card (SDHC), up to 32GB
Accessories :Rubber foot (x4), USB cable, Manual, AC adapter
Power supply :DC12V
Measurements :150(W) x 34(H) x 157(D)mm including protrusion
Weight:approx. 630g

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