Fantastic all in one option that includes a dac, amp with two outputs, and streamer. I got this to run Tidal at my office, however we are moving to a smaller location and I will not be able to bring this. It is in perfect condition, comes in the original packaging, and includes the remote. I've had zero issues with the unit, and it sounds absolutely fantastic with iems, the Bokeh, and high impedance Caldera.

Here are some recent quotes from reviews:

Compared to the Eversolo DMP A6: 'The most notable difference in tuning however lies within the midrange. The Matrix Audio streamer has a more organic and richer tuning, which gives the instruments and especially singers more body and flesh. The DMP-A6 has a lighter tuning here.'

'The Matrix offers a more enjoyable tuning which is better suited for long listening sessions.'

'The mini-i Pro 4 is a great all-in-one solution for anyone that’s looking for a solo source that covers all bases. With a wide array of digital and analogue inputs, as well as network capability and Roon Ready certification, the Matrix Audio mini-i Pro 4 is a highly competitive and feature rich offer.'

- Mini-i Pro 4 is a brand new audio decoding player in the mini-i series that integrates digital player, decoder, and headphone amplifier. It can easily be paired with your headphones or active speakers. It not only has excellent digital audio decoding capability, but also supports a variety of network streaming protocols. Combining high-quality digital audio/streaming media playback system MA Player and control program MA Remote App, it can easily play massive media music.

- Realize the indexing, classification, and playback control of music files in network shared storage and local storage devices. It can also play online streaming audio in a streaming manner. Support audio formats such as MP3/WMA/WAV/AIF/AIFC/AIFF/AAC/FLAC/OGG/APE/ALAC/M4A/DSF/DFF.

- MA Remote App is a companion application for MA player, available in three versions: for iPhone, for iPad, and for Android. It can manage, view, and play music in the music library, while also adjusting the host configuration. Its virtual remote control can achieve all the functions of the infrared remote control.

- Whether you are looking for pop music, classical music, or language programs, simply connect the mini-i Pro 4 to the internet and open the vTuner and Radio Paradise broadcasting services in the MA Remote App to meet diverse needs.

- The D/A chip has been upgraded to ES9039Q2M, with carefully tuned audio circuits, high-quality audio components, and optimized circuit layout, resulting in extremely high signal-to-noise ratio and low distortion.

- Equipped with two types of headphone interfaces: 6.35mm single ended and 4.4mm balanced. The fully balanced headphone amplifier circuit design reduces interference in signal transmission, effectively improves the output power and quality of the headphone amplifier circuit, and easily drives various high impedance headphones.

- Upgrade to a 3.46-inch fully fitted touch sensitive color LCD display, with a larger screen providing richer and more intuitive track information and host status information. The new touch experience makes human-computer interaction more convenient.

- The mini-i Pro 4 features high-quality USB decoding function, making it easy to connect to a computer, phone, or tablet PC, and supports up to 768kHz PCM audio, DSD512, and MQA encoded audio formats.

- Add an HDMI ARC input interface that can transmit audio signals from a TV or projector to the mini-i Pro 4, and provide support for a 24bit/192kHz sampling rate. Through the CEC function, you can achieve the linkage of on/off, volume, and playback between the mini i Pro 4 and the display device.

- Equipped with a set of RCA analog input interfaces and a 3-speed input gain option, the gain level of the input signal can be adjusted. Whether connecting traditional analog audio devices or enjoying modern high-definition digital music, the mini i Pro 4 can provide excellent audio performance and convenient operating experience.

- More stable and reliable audio data transmission can be achieved through wired network connection. Dual band WiFi wireless network eliminates the hassle of connecting and improves the flexibility of device placement.

- The RM5 remote control designed specifically for the new mini-i series products supports 5 different address codes, which can effectively avoid misoperation caused by overlapping remote control codes.

Specification:
- Model: mini-i Pro 4
- D/A chip: ES9039Q2M
- ARM Processor: 4-core 2.0GHz
- Display touch screen: 3.46-inch full color LCD touch screen
- Sampling rate:
PCM: 16 - 24Bit / 768kHz
MQA: MAX 24Bit / 384kHz
DSD: 11.2MHz (DoP)
DSD: 22.4MHz (Native)
- Digital input: 1 x optical, 1 x coaxial, 1 x HDMI ARC, 1 x USB Type-B
- Circuit input: 1 x RCA
- Circuit output: 1 x RCA, 1 x XLR
- Headphone output: 1 x 6.35mm, 1 x 4.4mm balance
- Network:
Wired network: 10/100/1000Mbps
Wireless network: 2.4GHz/5GHz
- MQA decoding support: full decoding
- Infrared remote controller: RM5
- Size: 186 x 224 x 53mm
- Weight: 1.3kg

MA Player Controlling System:
- Playback controlling APP: MA Remote App
- Local file playback: MP3, WMA, WAV, AIF, AIFC, AIFF, AAC, FLAC, OGG, APE, ALAC, M4A, DSF, DFF, CUE
- USB storage support: 1 x Type-C
- NAS: yes
- AirPlay2: yes
- DLNA: yes
- TIDAL Connect: yes
- Spotify Connect: yes
- ROON Ready: yes
- TIDAL: yes
- Qobuz: yes
- HIGHRESAUDIO: yes
- For SONY Hi-Res music: yes
- vTuner: yes
- Radio Paradise: yes