Matrix Audio mini-i Pro 4 — The elegant all-in-one streamer for desktop, TV, and headphones.

The Matrix Audio mini-i Pro 4 is a compact music streamer with an integrated DAC and fully featured headphone amplifier — built for people who want high-end sound without stacks of separate components.
Unlike Matrix Audio’s larger, more modular systems, it’s the “everything-included” solution: a touchscreen for direct control, HDMI ARC for TV integration, and both balanced and conventional outputs — so the setup works immediately instead of forcing you to adapt around it.
As is typical for Matrix Audio, the focus is not on flashy feature overload, but on stable streaming integration via MA Player and a calm, precise sonic presentation that feels just as convincing in everyday use as during focused listening sessions.

Hardware Platform

CPU: Quad Cortex-A55 2.0GHz
D/A Chip: ES9039Q2M

Digital Input

COAXIAL & OPTICAL: PCM 16-24Bit /44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz DSD 2.8MHz (DoP)
HDMI ARC: PCM 16-24Bit /44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
USB Audio: PCM 16-24Bit /44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768kHz; MQA 16-24Bit /44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz MQA or MQA Studio stream; DSD 2.8MHz, 5.6MHz, 11.2MHz (DoP); DSD 2.8MHz, 5.6MHz, 11.2MHz, 22.4MHz (Native)

Headphone Output

4.4 mm balanced

Signal-to-Noise Ratio (SNR): 117dB A-weighting
Total Harmonic Distortion plus Noise (THD+N):<0.0004%@20Hz-20kHz 4VRMS
Frequency Response: 20Hz-20kHz ±0.1 -3dB@90kHz
Output Impedance:<22Ω
Output Power: 2200mw@33Ω, 950mw@300Ω, 500mw@600Ω, 1%THD
Gain: +14dB

6.35mm unbalanced

Signal-to-Noise Ratio (SNR): 116dB A-weighting
Total Harmonic Distortion plus Noise (THD+N):<0.0005%@20Hz-20kHz 2VRMS
Frequency Response: 20Hz-20kHz ±0.1 -3dB@90kHz
Output Impedance:<11Ω
Output Power: 1200mW@33Ω, 260mW@300Ω, 130mW@600Ω, 1%THD
Gain: +14dB

Aux Input

Signal-to-Noise Ratio (SNR): 100 dB (A-weighted)
Total Harmonic Distortion plus Noise (THD+N): <0.0035% @ 1 kHz, <0.0035% @ 20 Hz–20 kHz
Frequency Response: 20 Hz–20 kHz ±0.1 dB, −3 dB @ 46 kHz
Channel Crosstalk: >-105dB
Input Level: 2.1VRMS Maximum

Network

LAN: 10/100/1000 Mbps
WLAN: 2.4 GHz / 5 GHz

USB Type C

The USB Type C port provides a maximum power of 5V/1.5A.
The USB port works with devices which conform to the USB mass storage standard and supports FAT, FAT32, exFAT and NTFS file formats, but is not guaranteed to be compatible with all storage devices.

MA Player

Controller app: MA Remote App
Local Playback Format Supported: MP3 , WMA , WAV , AIF, AIFC, AIFF, AAC, FLAC, OGG, APE, ALAC, M4A, DSF, DFF, CUE
PCM Sampling Rate: PCM 16-24Bit 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768kHz
MQA: MQA 16-24Bit /44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz MQA or MQA Studio stream
DSD Sampling Rate: 2.8MHz, 5.6MHz, 11.2MHz, 22.4MHz

Roon Ready

PCM Sampling Rate: PCM 16-24 Bit /44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, 768kHz
MQA: MQA 16-24 Bit /44.1 kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz MQA or MQA Studio stream
DSD Sampling Rate: DSD 2.8MHz, 5.6MHz, 11.2MHz, 22.4MHz