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...
- ...
- 871 posts total
@lalitk I agree with you regarding upsampling in the typical dac, even in the price range you describe. That even goes for the Chord method…I still cant figure what people are hearing when they say they love the Dave…I couldnt sell my fast enough when I had it. The Grimm decidedly does it differently. Sometimes a new take on an old idea bears a different fruit.
I was an early adopter with DSD and have a ton of files so I get where you are coming from. In fact, I spent a considerable sum and amount of time converting all of my vinyl to dsd. There really arent that many titles originally recorded in DSD, which is where the real opportunity exists. Its a shame the adoption isnt gaining any momentum…tough to edit in dsd I guess.
Another test I did, which again, is far from scientific or proof of anything other than concept. I played back the same tracks from several of my High Definition Tape Transfer titles I own. On the Innuos I played the dsd, 24/192, 24/96, 24/44.1 versions of the same tracks. Sounded great on both my Totaldac and the Meitner MA3. As we went down the resolution scale, the Meitner/Totaldac each sounded equally terrific on dsd and the sound quality of the the Meitner differed more than the Totaldac as we went down in resolution. I surmise since the meitner upsamples everything was the root cause. I preferred the totaldac with lower resolution tracks. Fast forward…on those same tracks, I played the dsd version through the Zenith into the usb of my totaldac and then the lower resolution through the Grimm via AES. I preferred the Grimm 4fs version of the playback. Once again, it proves nothing other than with the Totaldac the Grimm provided a higher level of enjoyment.
I dont mean to burst anyone’s bubble but their is simply no consistentcy of data, software or hardware out there. Well over 90% of the dsd material out there was upsampled by someone using whatever they used to do it to varying degrees of success. A GREAT may of the top studios actually use Grimm clocks in their mastering/recording chains so Grimm probably does have a but more experience in that regard and thus, a great deal of confidence/knowledge in how they can maximize results.
Another test I did one time…I had just received my Studer R2R deck back from receiving a perfect calibration and cleaning from a studio guy in LA. I had a dsd recording I had purchased of an album, I had a perfect original pressing on vinyl and decided to do a little test. I offloaded one well known track of dsd file to a thumb drive, I recorded the same track from vinyl to tape and then recorded the dsd track playback to tape. I then went to LA with the tape and the thumb drive. I didnt tell the guys at the studio what I had done, I just asked them to listen to the three tracks and independently tell me their impressions. They had, IIRC, a Playback Designs dac and a studer very similar to the one I had. I recognize that bias probably played a significant role…but they rated the dsd file third….the needle drop second and the r2r recording of the dsd file as the best sounding. This happened 10-12 years ago so I recognize technology on the dsd/digital side of the equation has come a long way. My takeaway? I thought the dsd file sounded best, the needle drop second and the dsd to r2r transfer third. Vinyl and tape sound rolled off to me and they are used to that sound. Fast forward to today, what we can achieve in the home is so vastly superior to what was even possible 20 years ago. I believe a really good 24/192 recording of a large swath of available music beats the dsd version of the same file (which was probably upsampled to dsd from that same file). I have owned Playback Designs, Chord, DCS, several Totaldacs, Meitner and MSB Discrete as far as my dsd capable dacs. I just havent been able to digest the cool aid that dsd is the answer when so much of our available music was recorded in either analog or 16/44.1. For me, for my listening taste, in my system and the eras of music I enjoy I have consistently preferred my music in the original format/sampling rate, not upsampled….until the Grimm. Everyone’s mileage may vary but we simply cant insist we are purists and one method is always better. The music we enjoy has likely been recorded in analog to tape. Then several copies were made of the original master and several copies were maded from the copies and by the time the tape arrives to the person who will lovingly transfer it to dsd, they are quite often dealing with a third or fourth generation tape at best. They do their thing and then presto, we have a dsd or pcm snapshot of that tape. So when I see/hear the conversation shift to discussions about “original format” I tend to look away and resume what I was doing. There are darn few recordings that meet that criteria…I just judge it by enjoyment and choose not to obsess about it. Much of what was being sold to us, especially in the early days of dsd sold was just upsampled pcm. |
I hear you and your sharing of your expeiences has influenced many of my decisions in the past. Thank you! You are always so kind to share what you learn…and to do so over the telephone as well. You are a real asset to all of us.
Your experience with the Phoenix reclocker doesn’t surprise me…but not because it isnt a terrific product, it is. It further reinforces that all products are not additive just because they are sometimes effective in certain situations. A simple example is if product A lowers the noise floor of something by 20% in a noisy system, what that product does well may make no audible difference in another system with a lower noise floor. I think we all to often suspend our decades of well earned logic with some of what we experience in hifi. For instance the reclocker may make a hige difference with average dacs with average clocking on their usb input whereas your dac likely has superior clocking. In short, the Phoenix is addressing something that you dac addresses more effectively. Thats my working theory as to why the Network Acoustics Muon system can be so absolutely transformative when I dropped it into my Innuos Zenith based setup while the Muon setup doesnt enhance the Grimm based setup in the least. In short, there are alot of products that address different things so when someone says its system dependent, what many of us are saying is “we dont know what needs addressing in your system, but in my system I made this change and it enhanced performance”. I read comments alot here on Audiogon that Reviewer A said it did this and I bought the power conditioner and it didnt do squat. Maybe the reviewer is in Brooklyn with bad power and the user who says it did nothing has phenominal power at their home. These subtlties in a system don’t stack like coupons on Amazon. For something to enhance a listening experience, there needs to be something to fix.
Be well Bill. |
@grannyring , as I’ve mentioned in past threads For a long time I didn’t hear the benefit of Innuos Sense over Roon that you and pretty much everyone else hears, until fairly recently. Not sure if it was due to a version change in either’s software or another tweak in my system, but I now hear far more detail and better imaging with Sense. Roon still sounds a little “bigger” to me in terms of scale, and also fuller, but Sense is just better. @ghasley , thanks again for your input. One concern I had was not knowing how decent the AES implementation is on my Diablo 300 DAC, vs USB which I currently use. Sounds like it will work well. I suppose the Diablo DAC’s supercapacitor it uses to provide isolated voltage for USB would not be utilized when using AES? I like that flashing blue light on the front of the Diablo that indicates the super cap is charging, when you haven’t powered the unit in a while! But it makes me think that Gryphon went the extra mile to make it’s USB interface on the DAC really good. |
- 871 posts total