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 Sorry to hear that you have a ground loop when the MU2 is placed in your system!  I did a quick search on the forum and it appears that it's not all that uncommon.  I'm sure you'll get it figured out, but at least the cheater plug gets you by for now.  I have a MU2 being delivered today and is the reason I inquired as to your experience to date.  Glad to hear that it's sounding amazing right out of the box and likely to get even better after running it in.

@yowser Congratulations on the MU2.  I have had a chance to listen a little bit yesterday (20 hours), and I must say that even as green as it is you can tell that it is going to be very special.  Let me know your initial reaction to the sound.

I have the MU1 and I'm considering the MU2.  But haven't experienced one yet.  

Jerry

@yowser Any preliminary impressions?  My Roon over the weekend was painfully slow sometimes buffering for >1 minute and hanging up.  Are you having that issue?

My early impression mimics yours and the multitude of the reviews out there.  Vocals are lifelike as you said, just as the music in general is more lifelike.  I remember one reviewer likened it to opening a window.  It sounded great right out of the box and continued to improve over the last 100 hours.  I've had it playing 24/7 with playlists and Radio Paradise, then listening in the evenings for 1-2 hours.  I'm impressed with the micro details in the music without being analytical.  I'm always a little skeptical of reviews, but they were so overwhelmingly positive on the MU2 that I had to listen in my home and I'm glad I did.  In answering your question, I did not have any buffering issues over the weekend.  As to your ground loop issue, I noticed on the last paragraph of page 7 of the supplied manual that Grimm states the MU2 "relies on safety earth in the mains cable to guarantee your safety. It also needs this connection as low impedance path for mains leakage current to prevent hum or sound quality degradation" and suggests consulting an electrician.