Grimm Audio MU2 Media Player / Streamer / Preamplifier

Grimm Audio is dedicated to improving audio playback quality by pursuing perceptual neutrality through a scientific approach. Their vision encompasses building a complete audio chain, “from sound to sound,” with an emphasis on an integrated, smart, and intuitive overall concept. Their products are designed to enhance the creation and experience of music, making it more beautiful.

Grimm Audio’s customers are passionate music lovers and sound engineering professionals who seek total clarity, allowing them to fully appreciate and convey the artist’s message in a way that deeply moves the listener.

The MU2 combines a music streamer with a superb DAC and a reference quality analog preamp. Its built-in DAC takes full advantage of the Grimm Audio low jitter clock and high performance FPGA processor. A relay based analog volume control enables the MU2 to become the true ‘hub’ of your hifi system for both digital and analog sources. Just like with its sister product, the ‘digital output’ MU1, a Roon Labs server is on board so no external computer is needed to enjoy perfect streaming.

“The MU2 offers full integration of functions, from Roon to analog volume control, with revolutionary sound quality.”

At the heart of the MU2, Grimm Audio’s proprietary Major DAC can be found. It is of a groundbreaking discrete design that makes optimal use of our own FPGA board. In a unique way our high resolution Pure Nyquist upsampling filters are combined with a fundamentally flawless 11th order noise shaper of 1.5 bit. If you like to read more about this technology, please check out the Major DAC blog.

As a result the MU2 reproduces micro-details so well that it allows a deep emotional connection to the musical performance. The stereo image is of groundbreaking quality. Its serenity invites prolonged listening sessions.

If you love your loudspeakers and power amplifiers but long for a fundamental update in sound quality and streamer experience, the MU2 is designed for you.

The MU2 has 2 stereo analog inputs and 3 stereo digital inputs. It has outputs on XLR and RCA, and headphones jack.

“The Grimm MU2 is a bang-up success.” 
- Kalman Rubinson, Stereophile (MU2)

“I can’t even think of any other I experienced at home that could compete with it.”
- Marek Dyba, Hifi Knights, Poland (MU2)

“It was an experience filled with emotion”
- Hijikata Hisaaki, Audio Accessory, Japan (MU2)

“The longer I listen, the more apparent it becomes that the typical ‘mechanical sound’ that has characterized digital since the early days has largely disappeared!”
- Werner Ero, Music Emotion, The Netherlands (MU2)

“The MU2 is the benchmark of honest neutrality.”
- Daniel Březina, Hi-fi Voice, Czech Republic (MU2)

MU2 Features

• Roon Server integrated (up to 100,000 tracks)
• Ultra-low clock jitter
• FPGA based discreet Major DAC
• All sample rates and formats supported
• Relay-based analog volume control
• Digital AES, SPDIF and Optical inputs
• Analog XLR and RCA inputs
• Analog XLR and RCA outputs
• Headphone output
• Web control of setup via any browser
• Infrared remote control
• External USB and NAS storage, optional internal SSD
• Tidal and Qobuz support
• 5 year limited warranty