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

@lalitk , 100%, I am very interested in all of the avenues we could choose to take with the products that I am choosing to spend some time to experience, even if I’m not planning to charge ahead and follow these paths. You and others on this thread obviously have a lot of knowledge and experience, not only on gear but the approach.

For me my time with the N20 has taught me more about me I think, than about the N20 itself. It taught me where my sonic priorities are, even when other presentations can be very alluring. I know I might “get there” following the path you have charted, but, I want to see which server takes me the furthest without going those extra steps. And to see what the external DAC can do. Not to mention that I prefer a simpler system, lol…

It was @ghasley who convinced me to try a good standalone DAC, as of course, I care about the sound of my system. But, I’m hoping it’s nothing but a learning experience and I get to sell my Merason after my time with it. I will however accept that my digital chain needs to include three boxes, as it is today (with my network switch, server and reclocker as it stands today), if the Merason wins.

I can even see a possible end to this particular journey being that I circle back to Innuos in the end - if I do I will go with the Statement. The difference with my N20 and my current Innuos setup has me wondering if there is some magic happening with my Diablo DAC module and the PhoenixUSB reclocker (which the Statement includes). Hoping when it arrives the MU1 will either confirm this, or it will be the one I prefer, but either way ideally without the Merason!

That said, I want to give the Merason the best chance I can. What are people using for XLR interconnects at this level?

 

@nyev

Others may differ but I would suggest using reasonable XLR interconnects but to not go crazy. If you read up on the XLR standard, the standard was developed to minimize cable differences. I’ve had alot of good ones...did I hear differences between Mogami and Blue Jeans? No. Did I hear differences between Kimber and Transparent Ultra? Well....maybe? In other words, there may be some differences but certainly not enough (IMO) to merit a XLR interconnect cable quest at this stage of the game. If you have a pair of XLR interconnects, try those first.

 

RE: the Merason Dac1. I hope you enjoy it. Its a fine dac that punches well above its weight class. With that said, at its new retail price, it is a fair value for the money but no longer the "deal" that it was previously. This exercise will tell you where your Gryphon dac falls in a two dac shootout. What would be awesome, of course, would be if your Gryphon is preferable to the Merason. That would keep your goal of a two box, high performance setup in play.

@adasdad picking up on this response here from you

To me it just doesn’t make sense to put a $10K streamer in front of a $4,500 DAC.

I put the Grimm in front of a comparatively low cost Metrum Octave v2 DAC and even this lowly DAC sounded far better with the Grimm at the helm.

Having such a solid front end like the Grimm helps you find the best from any DAC you may have in your collection - and in fact will also help you choose and audition any new potential DACs you may want to buy, with the Grimm allowing you to hear them at their very best.

So starting with the Grimm and simply using an Octave DAC (as an example) until you can afford better makes for good foundations in choosing the right DAC further down the line. When you audition these DACs you can be sure you have no upstream bottleneck putting a throttle on the full potential of your new converter.

 

 

“When you audition these DACs you can be sure you have no upstream bottleneck putting a throttle on the full potential of your new converter.”

+1, @chopandchange

Exactly! You can always explore better converter at later date. That’s one thing I always enjoyed and appreciated about Aurender streamers. 

@ghasley , I believe you are referring to the new MK2 version of the Merason DAC 1, which is 50% higher than before? Supposedly it’s been totally redesigned, and there are no reviews or firsthand accounts of the MK2, so I guess we can’t say quite yet whether the new version still punches above its weight at the higher price.

In my case, I purchased my mint MK1 version at a very reasonable price, and have the option to upgrade to the MK2 version at a very reasonable cost.

@chopandchange , your rationale makes sense to me. I too have found that earlier components in the digital chain are not limited by later, lesser components in the chain. As I mentioned before, Innuos demoed their new flagship $28k (CAD) Statement Next Gen paired with the Gryphon Diablo 300 integrated with its DAC module that I have, with the DAC module costing $10k (CAD). Although my DAC module cost 40% less when I bought it in 2019!

The MU1 costs about 35% more than the list price of my Gryphon DAC, so it’s not wildly out of whack from that perspective.  Although I did hear that the MU1 price is going up imminently.