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HP-A4BL

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.

11.2MHz DSD audio
Highly precise crystal with low phase noise is adopted and Playback 24bit/192kHz PCM and 11.2MHz DSD audio, High performance DAC (Barrbrown PCM1792A) is equipped.
4-pin XLR balanced output
Equipped with 4-pin XLR balanced output
Compatible with USB Audio 2.0
Asynchronous transfer up to 192kHz/24bit compatible with USB Audio 2.0

Specifications - Input

(USB terminal) Interface

USB 2.0 Hi Speed

(USB terminal) Sampling Frequencies

PCM 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz DSD 2.8MHz, 5.6MHz, 11.2MHz

(USB terminal) Quantization

16bit, 24bit

(Digital In terninal) Connector

Optical, Square

(Digital In terninal) Format

S/PDIF

(Digital In terninal) Sampling Frequencies

44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz

(Digital In terninal) Quantization

16bit, 24bit

Output

(PHONES BALANCED terminal) Connector

XLR (4-pin)

(PHONES BALANCED terminal) Maximum output

300mW or more (32 ohm)

(PHONES BALANCED terminal) Load impedance

16 - 600 ohm

(PHONES BALANCED terminal) THD

less than 0.04% (at 1kHz)

(PHONES BALANCED terminal) Frequency Response

20Hz - 80kHz (+-3dB, 32 ohm, 100mW)

(PHONE UNBALANCED terminal) Connector

1/4" stereo jack

(PHONE UNBALANCED terminal) Maximum output and Impedance

300mW or more (32 ohm) Applicable load impedance :16 - 600 ohm

(PHONE UNBALANCED terminal) THD

less than 0.04% (at 1kHz)

(PHONE UNBALANCED terminal) Frequency Response

20Hz - 80kHz (+-3dB, 32 ohm, 100mW)

[OUTPUT] (L,R) terninal (Analog output) Connector

RCA Pin

(OUTPUT) Frequency Response

20Hz-80kHz (+3dB)

(DIGITAL OUT terminal) Connector

Optical (square)

(DIGITAL OUT terminal) Format

S/PDF

(DIGITAL OUT terminal) Frequency Response

44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz

(DIGITAL OUT terminal) 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

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