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Blog-zine / News / UPnP improvements for MU1 and MU2

UPnP improvements for MU1 and MU2

November 10, 2026

We just released a firmware update for the MU1 and MU2. The MU2 received improvements in the sound quality of the DA converter and a possible click in the audio when changing sample rates has been fixed. On both the MU1 and MU2 the UPnP stability is improved, further strengthening our ‘JPlay Certified’ partnership with JPlay. A Change Log document with more details about the update can be found here for the MU1 (v2.0.8) and here for the MU2 (v1.0.8). All MU1 and MU2 users are invited to run the update, instructions can be found in the software manual of your product.

Read more about: News · Hifi · Grimm MU1 · Grimm MU2
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Joël Chevassus, Audiophile Magazine, France (MU2)

The Grimm MU2 is a real magnifying glass, that brings you even closer to the truth of the recording.

Joël Chevassus, Audiophile Magazine, France (MU2)
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