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Blog-zine / News / New firmware v1.3 for MU1

New firmware v1.3 for MU1

September 11, 2021

We are pleased to let you know that new firmware for the MU1 is released. Version v1.3 adds two features that were in strong demand: an S/PDIF output and IR control. 

The RCA S/PDIF output that can be found on the latest batch of MU1 hardware is enabled. Customers can now use their favorite RCA S/PDIF cable. 

The other feature also enables a MU1 hardware connector: the 3.5mm ‘remote control’ jack on the back, designed for use with common infrared extenders. IR remotes now offer access to play/pause, volume, source selection, previous/next track and in/out standby. Our team took this assignment serious and the MU1 can therefore be used with any type of IR remote on the market. In case you find a remote that does not work, please let us know.

Instructions for how to program the IR function can be found in the MU1 software manual. For a good impression you can watch the nice Youtube video that MU1 customer and Hifi-Advice author Christiaan Punter made. Enjoy!

Instruction video for IR programming by Christiaan Punter of HFA

A note to all users: please do not plug in the IR cable during the update process. Just let the MU1 run the update untouched.

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Read more about: News · Grimm MU1 · Hifi
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That was love at first sound and second sight. Never heard a system that gets better and better as you listen longer and longer. It's an absolutely joy-machine for deep diving into music, thanks a lot for creating this future icon.

Björn Molt, Berlin, Germany (MU1 & LS1)
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Designed & made in the Netherlands

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