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Matrix Audio M-Stage HPA-2 Classic Headphone AMP & USB DAC
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 Matrix Audio M-Stage HPA-2 Classic Headphone AMP & USB DACMatrix Audio M-Stage HPA-2 Classic Headphone AMP & USB DAC 

Matrix Audio M-Stage HPA-2 Classic Headphone AMP & USB DAC

£237.50 Exc. VAT |  


Matrix Audio M-Stage HPA-2 Classic Headphone AMP & USB DAC

Make the things better

HPA-2 CLASSIC headphone amplifier is the improved model of HPA-2, the optimized circuit design, new style appearance, exquisite processing technology and excellent performance to make it better.

Details everywhere

The high-brightness chamfering edge design of front panel, ultrahigh speeds revolving cutting tools elaborately carved out the mirror-like gloss edge on front panel, further improve the visual texture. The knurling design of volume knob to add the friction of the finger contact area can get better grip compare with polishing surface treatment, red mark on volume is more clear and distinguishable.

More enjoyment

The new gain control function, switching the gain switch on the rear panel to adjust output gain, two sections gains to match different headphones.

Hi-Res Compatibility

The new design of USB module is used XMOS U series chip and CS4398 high-performance D/A chip, support PCM-24bit/192kHz and DSD-2.8MHz/5.6MHz signal playback, not only DoP and ASIO Native two DSD playback methods, but also can be used with the iOS and the most android devices.

Functional & Safe

Class A work mode can feature it easily to drive all kinds of low sensitivity dynamic headphones; can be used as a preamplifier. The headphone protection function and power on/off noise elimination function to prevent the wrong voltage to damage your headphones and brings you the better user experience.

Performance heart & Simple appearance

Cherry-pick every components, the ALPS 27 type volume potentiometer, WIMA/Nichicon audio grade capacitances, audio dedicated power supply transformer, and precision non-inductive resistances, all of these selective components to ensure get the best playback performance from HPA-2 CLASSIC.


SNR >-95dB at 20Hz-22kHz A-Weighting
THD+N <0.0017% at 1kHz 1Vrms A-Weighting
Frequency Response 20Hz-20kHz (+0.01dB/-0.04dB)
Output Impedance 51ohms


SNR >-95dB A-Weighting
THD+N <0.0017% at 300ohms 13mW 1kHz A-Weighting
Frequency Response 20Hz-20 kHz (+0.01dB/-0.04dB)
Output Impedance 10 ohms
Output power 110mW at 33ohms / 310mW at 300ohms / 160mW at 600ohms At THD+N=1%


USB Chip XMOS Asynchronous USB Audio class 2.0
SNR >-103dB A-Weighting
THD+N <0.0009% at 1kHz A-Weighting
PCM Sample Rate 16-24 Bit/44.1kHz 48kHz 88.2kHz 96kHz 176.4kHz 192kHz
DSD Sample Rate DSD2.8MHz/DSD5.6MHz(DoP & ASIO Native)


Power Voltage 230V position is fit for AC220V-240V 50/60Hz
115V position is fit for AC100V-120V 50/60Hz
Power Consumption <15W
Fuse AC250V/500mA 5x20mm


Dimensions 280×120×47mm L×W×H(Including the protruding part)
Weight 1.22kg
Gain L=+6dB H=+15dB
System Support Windows 7/8/8.1/10 systems need to install the driver supplied
Mac OS X 10.6.4 and above version have native support and do not require a driver
Can be used with the most of android devices via the OTG cable
Can be used with iOS devices via the Apple Camera Connection Kit.
Accessories Driver&Manual Disk
Power Cord
USB Cable

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