Matrix M-Stage HPA-3U


Matrix M-Stage HPA-3U. Headphones audio amplifier and DAC USB. Matrix M-Stage HPA-3U Class A Headphone AMP & USB DAC. HPA-3U is a biggest evolution since the M-Stage series headphone amplifier came out, the new appearance, the new circuit design and radical performance improvement to make it all difference.

Pago sin comisiones / Financiación

*Opciones de financiación al finalizar la compra


The Matrix M-Stage HPA-3U desktop headphones amplifier features excellent structural design to quickly dissipate the heat of power transistors via the shell, to ensure the stability of the work; full symmetric circuit layout makes two channels audio have the isometric path; driver stage use the precision constant current source and establish stable working point; Parallel output of the output stage can effectively reduce the output impedance, and improved driving capability, extended dynamic range.


Full-band of THD + N less than 0.0003%, SNR up to -112dB, bandwidth not less than 150k at -3dB gain, 0.2O ultra low output impedance, three gain level options to fit for the different impedance and sensitivity headphone, all of these excellence performance improvements to be born the Matrix M-Stage HPA-3U.


High Resolution Format Compatibility
The most stable XMOS U series USB controller on the new USB module, support 24 bit/192kHz sample rate PCM signal playback, DOP mode DSD playback capacity, the biggest bright spot is that can be played with your iOS and the most Android devices.


Best Selection Best Match
Alps 27 series volume potentiometer, Wima and Nichicon audio gradecapacitors, Noratel toroidal transformer, precision non-inductive resistance, each carefully selected components make Matrix M-Stage HPA-3U headphones amplifier not only presents the perfect sound, but also a more stable and reliable.

Additional information

Weight 2,5 kg



Line Output

SNR >-112dB at 20Hz-22kHz A-Weighting

THD+N <0.0003% at 1kHz 1VRMS A-Weighting

Frequency Response: 20Hz-20kHz(+0.01dB/-0.04dB)

Output Impedance: 51ohms


Headphone Output

SNR >-112dB A-Weighting

THD+N <0.0003% at 33ohms 90mW 1kHz A-Weighting

Frequency Response: 20Hz-20kHz(+0.01dB/-0.04dB)

Output Impedance: 0.2ohms

Output Power: 2800mW at 33ohms / 420mW at 300ohms / 210mW at 600ohms at THD+N=0.01%


Gain Control

Gain: 5=5dB 10=10dB 20=20dB


USB Input

USB Chip: XMOS U-Series Asynchronous USB Chip

D/A Chip: Texas Instruments DSD1793

SNR >-110dB A-Weighting

THD+N <0.002% at 1kHz A-Weighting

PCM Sample Rate 16-24Bit /44.1kHz 48kHz 88.2kHz 96kHz 176.4kHz 192kHz

DSD Sample Rate DSD64(DoP)

System Support: Windows XP/Vista/7/8/8.1 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 Lightning to USB Camera Adapter.



Power Voltage: 230V position is fit for AC220V-240V 50/60Hz. 115V position is fit for AC100V-120V 50/60Hz

Power Consumption <25W

Fuse: AC250V/500mA 5×20mm



Dimension: 285×142×49mm L×W×H (Including the protruding part)

Weight: 1.7kg


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