Matrix Audio Mini-i Pro 4 Music Streamer, DAC & Headphone Amplifier

It's not just a DAC now
The all-new music streamer mini-i 4 does not only have a rich set of digital inputs with excellent digital audio processing capabilities, but also supports various network streaming protocols. Combined with a self-developed high-quality digital audio/streaming playback system MA player and the controller app MA Remote App, it easily plays a vast amount of online streaming music, provides you with an exceptional high-fidelity listening experience.

Sound quality is the essential of a DAC
Upgraded to the latest ES9039Q2M D/A chip from ESS, with carefully tuned audio circuits, high-quality audio components, and optimized circuit layout, it has a very high SNR and extremely low distortion, delivering excellent performance to various types of music.

Full balanced amplifier with dual output port
mini-i Pro 4 features two headphone output ports: a 6.35mm single-ended output and a 4.4mm balanced output, providing flexible connection options to accommodate different types of headphones. With a fully balanced amplifier circuit design, mini-i Pro 4 reduces interference in signal transmission and effectively enhances output power and sound quality, driving various high-impedance headphones effortlessly.

Sounds great, easy to use
With a 3.46-inch LCD touch screen, making the operations easier. The high resolution display enriches the metadata of the playing tracks and device status, while the MA Remote App and RM5 remote control * provide a convenient human-computer interaction. You can enjoy a diverse selection of music sources and a more enjoyable music listening experience.

*RM5 remote control is optional.

MA player
MA player is a high-quality digital audio/streaming playback control system developed by 「Matrix Audio」. With MA player, you can operate and control the mini-i 4 through smartphones or tablets within the local area network. In addition, MA player also integrates Roon Ready (certification undergoing), DLNA/UPnP, AirPlay 2, Spotify Connect and TIDAL Connect, allows you to experience high-resolution streaming audio in your network.

MA Remote App
The MA Remote App is self-developed by 「Matrix Audio」 which is available for iPhone, iPad, or Android phones. With these devices, you can browse and play high resolution online audio from TIDAL, Qobuz, and HIGHRESAUDIO, listen to internet radio stations, adjust every hardware settings, check and install new firmware for your mini-i 4.


Sort out your local music, play them effortlessly
The mini-i 4 supports local music playback from USB storage devices and NAS. It indexes the storage and builds a music library based on these storage sources automatically. Music files will be categorized under "Library" in the MA Remote App, allowing you to easily find your desired music based on albums, tracks, artists, genres, composers, performers, ages, labels, etc. Simply browse and play your music collections.

Open the door to the high-res online streaming
mini-i 4 provides a rich selection of online streaming music resources for you. You can login accounts of TIDAL, Qobuz and HIGHRESAUDIO in MA Remote App, easily browse and play a vast amount of high-quality online streaming music, opening up an endless world of music for you.

Enjoy streaming music right away
mini-i 4 supports various network streaming protocols. In addition to Roon Ready and AirPlay, it also supports DLNA/UPnP, TIDAL Connect and Spotify Connect. It means you can transmit audio through different devices and platforms. Whether using Roon or wireless streaming through DLNA/UPnP and AirPlay, both you can achieve high-quality audio playback experience.

High-quality USB DAC
mini-i 4 features a high-quality USB DAC. It allows you to choose the appropriate USB cable to connect to computers, smartphones or tablets and supports various audio formats and sampling rate specs up to 768kHz PCM, DSD512 and MQA audio.

Experience TV Hi-Fi
mini-i 4 has added an HDMI ARC input port, which allows the audio signal from the TV or projector to be transmitted to mini-i 4. You can enjoy clearer and more realistic audio while watching videos. The sampling rates are supported up to PCM 24 bit/192kHz. The power on/off, volume and playback linkage between mini-i 4 and the display device can be controlled through CEC, which brings a new TV Hi-Fi experience to you.

Broadly compatible S/PDIF input
mini-i 4 has S/PDIF optical and coaxial input interfaces, which can handle S/PDIF signals within the range of PCM 44.1-192kHz and DSD64 in DoP mode, providing users with a higher-quality audio decoding experience.

Jack of all trades
In addition to digital audio input and streaming audio playback, mini-i 4 also has one set of RCA analog input which offers three input gain levels. It allows you to adjust the input gain based on the front-end device and your preferences. Whether you want to connect traditional analog audio devices or enjoy modern high-res digital music, mini-i 4 will provide you with excellent audio performance and convenient operation.

Gigabit Ethernet
mini-i 4 is equipped with a Gigabit Ethernet connection to ensure the stability and sufficient transmission speed when playing high resolution audio files on the network, letting the audio files stream to your audio system smoothly. Get ready for a feast of music!