I have used audiophile fuses in many devices with excellent results. In the Grimm MU2, no noticeable change. I have left it in the MU2, but I feel a duty to share my experience with others.
Grimm Audio MU2 "Major Dac"
- Thread starter PaulB
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NP! Someone above mentioned the Muon Pro being a must with this DAC and after taking delivery this week I have to second that. In addition, the Tempus is same but even more powerful. I highly recommend it. In addition, cascading switches prior seems to create some kind of analog fever dream…legitimately the closest to analog the rig has ever been. Near indistinguishable tbh
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how are they arranged prior to the SR switch? Your signature shows that you are feeding the MU2 from the SR switch. Is that still the case?
Signature updated. The front end rigging is indeed proof that more is more ;^) I have a long ethernet run from the basement front end so that is BJC and inserting the SR down there seems to drive the signal way better than the Meraki did and there is significant synergy with the NA...Still experimenting with Ethernet cables but right now there is a lot of Wireworld ethernet in there as well including Platinum Starlight 8 and STE Starlight from the last Meraki to the SR. At this chokepoint, experimenting with ethernet cables tunes the system to a surprisingly significant degree since it is 2 switches away from the streamer. With the WW, the soundstage becomes giant and layered, super fast and yet still retains some analog from a top secret Ethernet that I just pulled out which makes things much more rounded, full bodied and analog. I think it's a matter of finding the balance there... Right now though this is a high yielding vector for experimentation.
The cascaded switches seem to be quieting the noise from the router significantly. Would like to convert the Merakis at some point to run on an LPS to go even further. I have modded them at this point to remove the PoE circuit and have some Synergistic Research ECTs I'd like to inject into the final Meraki. Anyways this is probably my best sounding front end yet and I've played a lot with various permutations including the EtherRegen/w AfterDark clocks and LPSs, Nordost LPS and switch (a $10k investment) as well as countless other off the shelf non-audiophile ones. Have also played with wifi mesh routers (like all of them) and Orbi is by far the best one I've found yet.
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very interesting. Thanks. The SR UEF switch sounded very good in my setup being fed by the router that is located in another room (then via in-wall copper to the hifi). The Muon Pro was just before the MU2. Moving the SR switch to after the Muon Pro, and therefore close to the MU2 rather than in another room, yielded benefits but I also wonder if proximity to all the other gear also might increase the chances of noise contamination because there seemed to be a little less refinement in the high frequencies. My ears are very attuned to that issue.
Thinking one solution to the proximity issue might be alleviated with grounding the switch, I have a basic SR grounding block for demo. Right now, it is plugged into its own dedicated outlet and connected to the main electronic gear by RCA since no grounding posts are provided on the Grimm and Mola Mola gear. In my super simple streaming system this includes four boxes: MU2, preamp and mono amps. Started the experiment on Friday, so too soon to tell. The cables for the SR switch and SR ethernet cable don't arrive for another couple of days therefore the experiment is incomplete.
Overall, the sound is not natural sounding to my ears. Will wait another day, then disconnect the gear one at a time to hear the results before the cables for switch and ethernet arrive. This grounding stuff is interesting. I first connected the preamp and listened for a while -- perhaps important to grounding (?), the preamp is connected to the amps with trigger cables. There was a point when the music became more relaxed. That lasted about 10 minutes and then vanished. But it gave me an idea of what might be an area of improvement.
In another thread, @Ted Denney III had mentioned adding an SR Router to the SR switch. The SR Router looks interesting to me because it doesn't include wifi and would sit next to the ISP-provided router and isolate it from the audio network. Whether that would be better than another switch in the same position is an interesting question. Once I'm done with the grounding experiment, a demo of the router would be interesting.
At any rate, your experiment shows multiple cleaning devices (both powered and passive) allow the MU2 to do its lyrical thing (what a beautiful non-sounding piece of digital gear!).
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Getting ready to jump on my motorcycle and grab a ride, so I can’t go into a lot of detail. However, I find creating a dedicated digital network, so that your system isn’t on with your Xbox, your cable TV, Wi-Fi you’re using on your cell phones, this makes a significantly bigger difference than having a dedicated AC line.
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