Matrix Audio mini-i Pro 4 Music Streamer/Headphone Amplifier

The Matrix Audio mini-i Pro 4 is a beautifully engineered all-in-one component that redefines the compact audio experience. It masterfully combines a high-resolution network streamer, a state-of-the-art DAC, and a formidable fully balanced headphone amplifier into a single, sleek chassis. Built around the latest ESS flagship D/A chip and a powerful quad-core processor, the mini-i Pro 4 is designed to be the versatile heart of any modern system. With its vibrant touchscreen, a full suite of digital and analog inputs including HDMI ARC, and the intuitive MA Remote App, it provides effortless access to all your music sources with stunning clarity and dynamic power.

Key Features:

• Flagship ESS DAC: Features the cutting-edge ES9039Q2M D/A chip, delivering a class-leading signal-to-noise ratio and vanishingly low distortion.
• Fully Balanced Headphone Amplifier: A powerful, low-noise headphone amplifier with both 4.4mm balanced and 6.35mm single-ended outputs to drive even demanding headphones.
• Versatile Connectivity: A complete input array including USB, Optical, Coaxial, HDMI ARC for TV audio, and an RCA analog input for sources like a phono stage.
• High-Resolution Streaming: Roon Ready and supports a wide array of streaming protocols including AirPlay 2, DLNA/UPnP, TIDAL Connect, and Spotify Connect.
• MA Player & Remote App: The powerful, self-developed MA Player OS and MA Remote App provide a seamless and intuitive user experience for browsing and playback.
• 3.46” Touchscreen: A crisp, vibrant LCD touchscreen allows for easy operation and displays full-color album art and device status.

A New Generation of Sound and Power

At the core of the mini-i Pro 4 is the flagship ES9039Q2M D/A converter from ESS, paired with a high-quality clock system to ensure a digital-to-analog conversion process of exceptional accuracy and musicality. The fully balanced headphone amplifier is a ground-up design, offering a significant increase in power over its predecessor. With up to 2200mW of power from the 4.4mm balanced output, it can drive a vast range of headphones with authority and control, revealing the full dynamic potential of your music.

The Center of Your Digital and Analog World

The mini-i Pro 4 is built for complete system integration. The HDMI ARC input makes it simple to dramatically upgrade your TV's sound, creating an immersive Hi-Fi video experience. The RCA analog input features multiple gain settings, allowing you to perfectly match the level of your turntable's phono stage or other analog sources. These inputs, combined with a full suite of digital connections and high-resolution network streaming, make the mini-i Pro 4 a truly comprehensive hub for all your audio needs.

Intuitive Control, Effortless Playback

Interacting with your music has never been easier. The mini-i Pro 4 features a beautiful 3.46-inch touchscreen that displays album art and allows for direct control of playback and settings. For more detailed browsing, the MA Remote App for iOS and Android gives you full access to your local music library (from USB drives or NAS), online streaming services like TIDAL and Qobuz, and a world of internet radio. And as a Roon Ready endpoint, it integrates flawlessly into the premier music management ecosystem.

The Listening Room Difference

We’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.

Specifications