Grimm MU1 Streamer - Really "The Best"?


I've recently become interested in the Grimm MU1.  While reviews of top end players from Innuos, Aurender and Antipodes and others are typically all very positive, the tone of the many pro reviews of the Grimm MU1 go far, far beyond, with some reviews resorting to using superlatives and gushing of positive system transformation and not being able to stop listening to material, etc..  HiFi Advice and Steve Huff (actually calls it "magic") have such reviews.

Given the delay in availability of the Innuos Pulsar which I'm told will be better than my current Zenith Mk3 + PhoenixUSB reclocker, I am interested in replacing my streaming setup with a one-box solution that includes a high-precision clock.  The new streamer will continue to feed my Gryphon Diablo 300's DAC module, which I have no interest in replacing.

I'm actually a fan of Innuos, after they improved the sound of my Zenith with firmware updates and after I added their PhoenixUSB reclocker. I appreciate this commitment to improving sound quality which is why I was so interested in the Pulsar.

The trigger for considering an upgrade is not for improved sound, but rather, to solve some issues I have with too many Audioquest power cords coiled and clumped together. I will get to lose one of them and one of my USB cords with a one-box streamer. I've noticed my sound is very sensitive to positioning of my AC cords and find I often need to re-adjust the PC feeding my amp to get proper sounding vocals at center stage.  One of my subs also seems to be picking up AC noise when the crossover is set above 60Hz. The second trigger is simply system simplification, removing one box.  All that said I don't really have any complaints regarding sound, and the PhoenixUSB reclocker truly did improve the sound of my Zenith.

While the Grimm MU1 has it's 4X upsampling up it's sleeve with reviewers absolutely glowing over this feature and it's extreme ability to separate tones to the left, right, front, and back far better than the rest, I don't see that Grimm has gone to any lengths with regard to power supply management in the way other brands do including Innuos. The MU1's ultra-simplistic interior doesn't bug me, but the lack of transformers and power management makes me wonder....

Are there any updates from folks who have directly compared the MU1 vs similarly classed streamers from the competition?  Did you find it to be as revelatory as the pro reviewers found it? And, how does it compare to other streamers with it's 4X upsampling disabled?  Does it sound like it suffers from it's lack of power management?  I do see that the clock should be very good...

 

 

nyev

Showing 5 responses by nadimjaber

About Sablon cable: I have the Sablón USB cable and it is a cable with which I am very satisfied in terms of its sound result. Highly recommended. That does need an adaptation period of many hours.

Hello everyone, the first thing is to congratulate everyone who has participated, this is one of the best posts I have read in this forum. I also have the Innuos Zenith MK3 + Phoenix USB combo, I use the Esoteric K01XD as DAC. I use Roon (mostly) and Sense as streaming software. Not long ago, I did some tests to see the behavior of the sound in Roon, placing a Roon Ready to act as a bridge between my Innuos combo and the Esoteric Dac. From those tests, the conclusion I've come to is that a good streamer bridging can go a long way in SQ quality. The best result was when putting as Roon Ready an Esoteric N05 (previous model) and connected by coaxial to my DAC. For this reason, I have been looking at the options for a good streamer, including the N05, or the Hifi Rose 150, the Metronome DSS 2, and in that order of things I found the Grimm Audio MU1. That is a brand that has caught my attention for its good reputation in synchronization cloks.

That's why I was wondering how the coaxial output of the MU is, if it's as good as AES. The idea of ​​a MU1 would also be due to its SQ quality for removing two devices from the system, which is why I am concerned about the comments about the need to place an ethernet filter/recloker before the Grimm.

Hi, Niev for your comparisons between the Innuos combo and the MU1, they are much appreciated as I own two of the three Innuos you have. I don't know what DAC you have, since that is a very important element in the sound chain. Although the purchase of a Mu1 would be in order to replace the Innuos combo, after your comments I am left wondering if this would be a good decision since it means an outlay of more than $5000. Another option to consider would be to look for a streamer (better without a dac) to do the work of roon ready. There are products that can be attached to my Innuos combo, and it seems that an interesting option would be the new Innuos Pulsar, but it seems that I don't know when it will be released. Another option could be Hifi Rose with the 150B, which, having a digital output, is perfect for my system. Many doubts... About what would be the best option.

hi. In my system I have had the opportunity to test the Innuos Phoenix Net together with the Zenith and the Phoenix USB and faced with a simple Netgear 108. The results were quite clear for me, very subtle or practically indistinguishable and I could not in a blind test differentiate between both switches. The explanation is that the reclocking of the signal that the Phoenix USB makes before entering the DAC causes a redundancy in the data synchronization that does not allow the signal to be differentiated from one to the other. Although each audio system has its own idiosyncrasies and characteristics, in mine it was not worth investing in a HIFI switch.

Hi, Different sources, different sounds. It's that easy. Just as not all dacs sound the same, and not all turntables sound the same, the different sound formats will have their own imprint and each one is free to choose the one they like best. Which and in summary is a matter that in many cases is subjective and there, particularly, I do not enter

 

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