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Evo1668

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  1. I know it doesn’t make sense - I never got my head around the technology, they do go into lots of detail on their website about it and I think the manufacturing process is quite intense for these devices. You can build one yourself (they do a diy version of the firewall - if you’re ok with wielding a soldering iron) which makes price of entry a lot less wallet stretching - in fact the one I tried first into the Grimm was one I built myself - try the stock Grimm cable instead and save on the Shunyata
  2. On the conditioner mains front for the MU1 has anyone else tried the LessLoss 640x firewalls into the Grimm? I tried one a few nights ago into the back of the Grimm - a spare which I forgot I still had in storage following our big move last year. It sounded damn good, takes it to foot tapping amazing. I’ve been running the 640x for a while into the back of my 8C speakers and I read somewhere that running these firewalls in series to your main source, improves things even further by some margin. So I removed the two from the speakers and connect the speakers directly into the PS Audio PPP. Now i currently have three of them in series on the MU1 - foot tappingly stunning - the music surrounds you and just sucks you in. I’m leaving things like this for the next few weeks and then I’ll remove them and see if the magic is still there, or if there is something else going on
  3. Did you try the Ultimate cable with the 156. There’s quite a few very positive reports using the Puritan Ultimate cable between the wall socket and the 156 and further improvements after a settling in period - sterile/artificial sounding being a common initial first observation by many.
  4. What made me change and remove the stock MU1 footers? I just felt the contact area of the seismic footers when positioned at the four corners, were being compromised by the stock foot and needed a more uniform surface contact area - this was confirmed when listening with the Auva as well - trying both designs with and without the stock feet in place. I also don’t care for Hans’ positioning over the baseplate and case edges, as it ever so slightly hardens the presentation and compromises interferes with the soundstage to my ears. I said previously that both Seismic and Auva compared favourably with each other - one vivid the other dramatic. Trying to decide which footer I preferred - listening with each design in place over a couple of days, I kept missing what the other footer design contributed. In a moment of curiosity, I thought to try both footer types together. The long and short of it being, the Auva EQ are best placed under the seismic pods - a bit Frankenfooter maybe? 😂 - but both footers together produce something quite remarkable. - it’s not subtle. You hear in disbelief such tiny details, clearer vocal articulation, mix techniques (good and bad), increased low register articulation and bloom, an increase in soundstage depth and width. I reached out to Stack Audio giving my feedback on the Auva and also my experience combining them with the Seismic pods. They offered to have a listen to the combination as they have the pods themselves - feedback was largely in agreement with what I was disbelieving/hearing. In that music is overly immersive with a soundstage not heard before. A wonderful improvement.
  5. You have to open up the case to remove the stock footers. Just make sure you use an exact Phillips screwdriver head as it is easy to damage the existing countersunk bolts. Bear in mind the front right inner bolt is an upright that is attached to the footer and clamps a cable coming from one of the SSD drives. Not sure if this affects the integrity of the cable as an attachment point, although it is a stiff cable and doesn’t move at all - I had no way of refitting the post sans removal of this footer leaving the cable unclamped. I used the pods as I was already using the seismic podiums as platforms under my 8C Speakers and they do reveal a wealth of hidden wonders from your existing speakers - but they are quite pricey as speaker platforms but as I said reveal what your speakers are capable of actually achieving
  6. I’m using 4 feet. I have tried 3 footers in past, but given most of the MU1 mass is towards rear left it just feels unbalanced using 3. I did try the Auva briefly earlier with 3 and there’s a tiny bit less detail, although prat seems more apparent, but you seem to lose a bit of that magic that invites you into the music. But there again that’s probably more than likely my own expectation bias at play or I’m imagining differences
  7. Comparing the Auva footers against the Townshend Seismic footers. I have already removed the stock feet and have been using both footers located in same location as the stock feet. I didn’t think you could beat the Townshend footers, but the Auva just does that extra something for the music, even though the Townshend appear to reveal a smidgen more highlighted detail. Best way I could summarise and describe the differences is like the filter effects you apply to iPhone photos - the stock feet the original photo - Townshend is vivid -and Auva is dramatic, so damn engaging.
  8. I can attest to using the Townshend pods beneath the MU1 - currently experimenting using these along with the metal disc part from the smallest HRS footers which the MU1 feet make contact with - have tried footers/pods at various points beneath MU1, but always prefer isolation contact directly with MU1 feet/blocks which have their own form of isolation built in.
  9. I think I must be an outlier of MU1 owners not using the usual aes cables mentioned on here - one cable I have been bowled over with which I do use with the MU1 is the lesser known Anticables from Paul Speltz - sounds extremely musical to me and Paul offers a complete money back guarantee
  10. Eelco replied to one of the first UK reviews of the MU1 by The Ear two years ago in it he states https://the-ear.net/review-hardware/grimm-audio-mu1-digital-hub-network-streamer-server/ “it is interesting to read that Jason prefers to disable the MU1 upsampling, and also the internal fpga upsampling of the iFi DAC (“bit perfect’ mode). The iFi DAC has a custom ‘interleaved’ construction of 4 Burr-Brown DAC chips. It makes me wonder if this DAC topology for some reason performs better when fed with a lower sample rate. It is hard to tell. In any case just like iFi we offered the option to turn the fpga upsampling off to check which setting offers the best sound quality. Usually upsampling wins, but you never know. For example, with some pop albums, the ‘edge’ that lower quality upsamplers in DAC chips offer was part of the decision making during mastering and could be missed by some.” Eelco Grimm, Grimm Audio
  11. Dutch & Dutch 8c and 2FS sampling. A SMSL Sanskrit Mkll and 4FS for headphone listening
  12. I’ve been an 8C user for 3 years now and with the MU1 it is a sublime listening experience. I’ve recently discovered volume control is best at end of chain closest to speaker ie 8C; even greater level of transparency. Will have to compare back on the MU1 see if the upgrade has improved the digital volume
  13. yes as I understood things that is supposed to be the case - although in the options I have outlined below, to my ears they all sound different in the order least to most transparent I believe the variations are :- (excluding Roon DSP vol) Roon ——> MU1 ——> DAC/pre Device* ——-> digi ———> fixed/0db fixed. ———> digi* ———> fixed/0db fixed ———> off. ———> variable* * = where volume is controlled
  14. I don’t have a Tambaqui DAC, but your question spurred me on to finally check against my D&D speakers, which has the DAC in the speaker. The DAC (8C) controlling volume sounds to my ears superior (even more goosebumps) versus controlling the volume in the MU1 itself. Unfortunately I do lose the convenience of controlling the volume through Roon using MU1 is a downside for me - although the D&D uses an app called Ascend which I can control volume fairly easily using my phone. Controlling volume with other Dacs of course may vary…..
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