Grimm Audio MU1 Music Streamer

Grimm Audio

Grimm Audio MU1 Music Streamer

The MU1 is the ultimate digital music source.
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Grimm Audio wanted to develop the most accurate audio source they could imagine. In their experience, the human hearing system shows an incredible sensitivity to anomalies. Even unimaginably small aberrations appear to be audible. In principle, digital audio does offer perfect reproduction. Its sonic quality, however, is limited by the implementation accuracy of the physical and mathematical laws that affect the conversion from one format to another. Grimm Audio strives to bring you confidence that all technical details are taken care of to the greatest extent so that the reproduction system steps out of the way of the music.

With the MU1, the Grimm Audio goal was to set a new benchmark in music player design. The Linux-based computer system brings solid data integrity. Their in-house-designed FPGA interface board, which forms the heart of the MU1, offers breakthrough performance levels in format conversion and receives automatic updates whenever they have pushed the boundaries again. Needless to say, the MU1 features their trademark ultra-low jitter clock. This is a music player worthy of the name Grimm Audio.

Once excellent sound quality is ensured, the quality of a music player is then defined by the user experience. For this, Grimm Audio partnered with Roon Labs, who in their opinion are in the lead when it comes to a rich and engaging music experience that appeals to your whole family. The MU1 runs the Roon Core server, so no extra installs are necessary. Just pick up your tablet and experience the music. For customers who prefer to only run a simple playback system without Roon’s extras, they will offer a solid alternative. 

The MU1 combines seamlessly with the LS1 playback system. Of course, the virtues of the MU1 can also be realised with DACs from other manufacturers. Because Grimm Audio love to create a stunning look for their equipment, the boundlessly versatile system is housed in a cabinet of minimalistic elegance, so the MU1 will easily become the gem of your living room.

The MU1 has 6 channel outputs and 3 stereo digital audio inputs.


  • Roon Core and Roon End Point integrated
  • ultra high up- and downsampling precision
  • ultra low clock jitter
  • seamless integration with LS1 series
  • excellent source for 3rd party DACs
  • all sample rates and formats supported
  • surround playback option with 6 digital output channels
  • AES, spdif and optical digital stereo inputs
  • high performance FM receiver
  • external USB and NAS storage, optional internal SSD
  • Tidal and Qobuz support
  • Spotify Connect support
  • 355 x 85 x 295mm (WxHxD)
  • 5 year limited warranty

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