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Matrix Audio HPA-3U DXD DAC and Class A Headphone Amplifier


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Enquiry/price check? Click here SKU: MAHPA-3U
Ex VAT: £332.50

Class A headphone amplifier with a stable DXD USB module that reduces impedance and improves dynamic range while catering to all levels of headphone sensitivity.

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Condition: Brand new in original retail packaging

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Warranty length Lifetime
Brand Matrix Audio

Tech Specs

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
SNR: >-110dB A-Weighting
THD+N: <0.0009% at 1kHz A-Weighting
PCM Sample Rate: 16-24Bit /44.1kHz 48kHz 88.2kHz 96kHz 176.4kHz 192kHz
DSD Sample Rate: DSD2.8MHz/DSD5.6MHz(DoP and ASIO Native)

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

Product Description

Matrix Audio HPA-3U DXD DAC and Class A Headphone Amplifier is the latest development in headphone amplification from the brand since the M-Stage series. It features a sleek new appearance, excellent circuit design and significant performance improvements.

Performance Improvements

The HPA-3U features a range of improvements to the performance. With a full band of THD + N less than 0.0003%, SNR up to -112dB, bandwidth not less than 150k at -3dB gain, and 0.2Ω ultra low output impedance, this product caters for the different levels of sensitivity and impedance in headphones.

USB Module

It comes equipped with a stable USB module that supports high resolution 24bit/192kHz sample rate PCM and 1bit/5.6MHz DSD audio streaming. Alongside this there is support for DoP and ASIO Native and you can playback through iOS and Android devices.

Outstanding structural design

A high quality structural design in the HPA-3U works to ensure heat dissipation requirements are met, ensuring a stable outcome. The symmetric circuitry enables parallel isometric paths from the 2 channels audio which can reduce output impedance, improve driving capability and extend the dynamic range.

Key Features

- Alps 27 series volume potentiometer
- Wima and Nichicon audio gradecapacitors
- Noratel toroidal transformer
- Precision non-inductive resistance

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Contact Details

UK Local Rate Number
0844 50 403 50

Sales Landline
0121 224 7300/7401

Customer Services Landline
0121 224 7350/7351

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