MATRIX M-STAGE HPA-2 Classic USB DAC DSD Class A Headphone Amplifier Silver

MATRIX STAGE HPA-2 Classic USB DAC DSD Class A Headphone Amplifier Silver

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Reference : 10826
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The A-Class Matrix M-Stage Amplifier HPA 2 Classic replaces the HPA 2 with a sleek design. The DAC digital audio part evolves with the adoption of the CS4398 DAC for a better integration of the DSD format.

In addition, the Matrix M-Stage HPA 2 Classic has a gain adjustable in a "High and Low" position to adapt its HiFi headphones.

The components are always exceptions with capacitors of Vima origins to film and Nichicon and resistances with low induction.

Equipped with a fully redesigned XMOS USB interface for the DSD, it incorporates an excellent Class A headphone amplifier stage that has made Matrix's reputation as standard.

Versatile and able to manage the latest Smartphones Android and IOS tablets as sources, it combines with brilliance the useful to the enjoyable.

Like the older generation, the Matrix M-Stage HPA 2 Classic allows Class A pre-amplification from an analog source to a stereo amplifier through its stereo RCA inputs / outputs.

TheMatrix Mstage HPA 2 Classic can be used with most Android devices supporting OTG USB devices.

The Matrix Mstage HPA 2 Classic can be used in IOS via the Lightning port and the USB camera adapter.

Test of the Matrix HPA2 Classic by Tellement Nomade

matrix M stage HPA classic test

M-STAGE HPA-2 Classic by Qobuz (FR)

"the DAC with Matrix M-Stage headphone amplifier HPA-2 Classic is a very recommendable device, both for its very good sound performance, highlighting the power of its headphone amplifier, for its presentation and its very serious manufacturing inspiring confidence at a price that is not at all prohibitive."
Test Qobuz

Digital Connectors:

  • Input: Asynchronous USB (XMOS) 24bit 192khz, DSD2.8Mhz / 5.6Mhz.
  • Sampling Rate PCM: 16-24Bit / 44.1kHz 48kHz 88.2kHz 96kHz 176.4kHz 192kHz.
  • Operating systems: Windows XP / Vista / 7/8 / 8.1 (driver required).
  • Mac OS X 10.6.4 (and lower native support without drivers).

Analog Connectors:

  • Input: RCA Stereo.
  • RCA Stereo Outputs.


  • SNR >> - 95dB at 20Hz-22kHz Class A.
  • THD + N> 0.0017% at 1kHz 1VRMS Class A.
  • Frequency response: 20Hz-20kHz (+ 0.01dB / -0.04dB).
  • Output impedance: 51ohms.
  • Output Headphone asymmetrical (jack 6.35):
  • SNR >> - 95dB Class A.
  • THD + N <0.0017% at 300ohms 13mW 1kHz Class A.
  • Frequency response: 20Hz-20kHz (+ 0.01dB / -0.04dB).
  • Output impedance: 10ohms.
  • Output power: 110mW at 33ohms / 310mW at 300ohms / 160mW at 600ohms at THD + N = 1%.

Gain Settings:

  • Gain: Low + 6dB, High + 15dB.


  • <15w. li="">
  • Fuse: AC250V / 500mA 5x20mm.


  • 280 × 120 × 47mm W × W × H.
  • Weight: 1.22kg.

Accessories :

  • User manual on CD × 1.
  • Power cord × 1.
  • USB cable × 1.

Data sheet
DAC / ADC ChipCS4398
Max sampling rate192kHz
Channel2 (Stereo)
ClassClass A / AB
Remote ControlNo
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