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?

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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.

How many owners leave their MU2 on all the time? I put it on standby, but then I need to backup files manually. Is it better to leave it on 24/7?

24/7 for me. The MU2 is quite an achievement. I was an early adopter on the MU1. I’ve had various nice dacs and streamers through the years. I found the MU1 to easily best the Innuos Zenith I owned previously. Many excellent dacs (Meitners, DCS Bartok Apex, etc) have come through my system. MU2 compared to my MU1/Audio Note DAC4.1x Balanced is an interesting exercise. The $18k price of the MU2 is an absolute bargain. At this level, its a matter of what you prefer. There is a sure footed elegance to the presentation. Bass and space are strong traits. I was a die hard separates guy but those days are gone now…those who require separates today do so in my opinion because its what we’ve always done. More boxes looks cooler, the subconcious fear that the experimentation is over strikes fear…

 

The MU2 can be end game for most music lovers.

@ghasley - Nice write-up on the MU2.  I was very close to getting off the DAC/streamer merry-go-round and trying/buying an MU2 earlier this year, especially after reading Michael Lavorgna's Twittering Machines review, where he said,

“MU2 offers the best reproduction I’ve heard”

Maybe I should have purchased one, especially given the free delivery and 60-day return option.  However, reading comments like those by @pantera2 in this thread, and by @andynotadam who prefers streaming from his Nucleus+ to running everything through the MU2, caused me to pause.  I also don't like the user interface requiring volume to be controlled using a tablet.  It seems that offering a simple, high quality remote should have been an easy option for the Grimm folks to include.  Even an Apple remote would have been sufficient for me.  I am still curious to hear one.