Grimm MU2 Experience


I have ordered a Grimm MU2 and was wondering whether an owner out there could share there experience with the unit and what to expect with break-in?

wlp3

@wlp3 - thanks for the update.

For my clarity, you are saying that you have the volume fixed in the Roon settings, and then you are using the on-board volume control in the MU2?  If yes, how do you physically change the volume except by manually turning the plate at the top of the unit?  Is there an app that allows you to control/change the volume remotely?  I guess I do not understand Grimm not including a remote control with the MU2.

The MU2 is best controlled with a tablet.  You can control the volume through a sliding bar on the control app, the disc on top, or by an infrared remote.  They don’t include a remote because most people will be using a tablet to control and volume can be controlled on the tablet.  In my case I am using the volume control for my integrated amp.  If you choose to use the preamp in the MU2 you would use the control app or buy an infrared remote on Amazon if you feel the need to have one.

I seem to prefer using my Nucleus+ as the Roon Core on the network and fixed-volume to my MU2 as the endpoint...

I just received my MU2 on Tues of last week, and right out of the box it sounded horrible. The bass was,for the most part, non-existent and what was there was very compressed sounding. The midrange was ok and the treble was very bright. I'm now about 20 hrs in and the bass is now present and sounding pretty good, midrange is sounding real nice and the top end is still a bit bright. It's still a bit digital sounding at times. At this point my innuos Zenith/ Denafrips Terminator 2/Audio Research Ref5 combo sounds much more natural, so I'm hoping more break in time will reveal the magic of the Grimm that everyone is talking about. I've been using the MU2 preamp and haven't tried running it through my preamp yet. I'll wait untill it's further broken in for that. I'm hoping for the best,but at this point a bit underwhelmed.

I've been reminded of how much I didn't like Roon. Since buying the Innuos and using their sense app I've found that superior, so I'm hoping that Grimm will  support Tidal connect in the future and come up with their own app. I have already had a couple of dropouts, and some clicks in between tracks on playlists and that's just unacceptable and I never experience that with the Sense app. Also, I can't access my Tidal playlists that I created. Roon does.have some nice features, but the negatives far outweigh them. Just my opinion.