Hum killing seems to be another area that falls in the “depends on the synergy” category. I was looking at Shunyata’s offerings last night. I’d need at least 8-10 outlets, preferably 12. Their 12 outlets units are the Hydra Sigma and Alpha. Heck of a lot lighter than the competition.
My 60/120 Hz hum starts low and isn’t apparently audible when something is playing. When nothing is, however, I’ve noticed that it does go up with the (preamp) volume.
Thanks Donald, I’m postponing fine tuning tweaks on P15, awaiting the DC Blocker. Then I’ll try for sure both plug damping and rings.
And now another issue. The P15 stays with the plug images on the screen completely red. So the outlets don’t work. I tried a few power cycles OFF/ON unplugging for an hour the power cord, without success. It seems frozen on this status and if I press the blue logo button on the front panel, no changes.
@jamesh, I’ve just sent to Steve an email. Mmm this unit in not my friend indeed!
I ran into this in AliExpress. It looks just like my Puron AC conditioner, and will this be equal or better than Puron (2) I am using now?
Well, I ordered one to try. If this works equal or better then it is quite a bargain.
People on the Puron thread at What’s Best Forum would be interested to hear how how it goes after a good burn in. I use a Puron, but found the Nordost devices QV1 and QK2 and QSine, especially the latter, to be more effective. Grounding via one of the plug-in versions also (e.g., Russ Andrews, Puritan).
There are other gizmos being sold by Vera-Fi Audio that are also effective (well, not the SnubWay for me, unlike others, but the SDFM fuse boxes are vg once one finds the right sluggo to use for desired results).
Looking forward to your thoughts. Thanks for sharing.
I was looking at the SnubWay but Vera/fi seems to be not responding and I changed idea.
Furutech Clear Line (3): don’t like them anymore, period. They are in a drawer collecting dust. If anyone wants them I’m happy to ship them, along with dozens of Booster risers and Isoacoustics Orea.
Last week I got a few Nordost Qk1 (2), Q SINE (1) and Q WAVE (2). They do something especially if used all together. I use them ONLY for non-dedicated lines, where the music room shares the sockets with rest of the house. I know that they recommend to plug them as close as possible to the system on the same circuit but I prefer a different approach. And it seems to work in that way reducing noise from some SMPS around there. Yes, non-dedicated lines can influence dedicated lines from different circuit in my experience and I guess that the common ground they share (external main rod) is the culprit. Here, on the noisy line, I want to try another Puritan Ground Master City sooner or later.
Isotek Isoplug EVO3: having watched the Alpha-Audio video on YouTube I also ordered 3 pieces of them to try.
Remember to unplug this stuff from the sockets to better hear if the effect is really good or not.
That’s my recent experience with plug-in filters.
Your system is at a level that these plug-ins would not help I believe, and they seem to hurt more from your experience. They probably work better with systems that have more background noises, or without dedicated lines.
Mark of Vera-Fi is usually very responsive, although they are having lots of new product arrive, so he may be busy with that. SnubWay has a different purpose than the Puron. His is a two-man operation, he in TX and his asst. in IL.
I found Clear Line to have no effect, and hear that I’m far from alone in that.
I’ve been auditioning the Puritan City with a couple of Russ Andrews RCA tri-braids attached to Lampi dac and VAC pre. Immediate positive effects — quieter, solid image. Andrews equivalent plug-in takes up to six cables, vs. two for the City, and is slightly less $$ shipped (actual cost). From the UK it’s taking 4-5 days to MT. I think one of the Andrews plug-ins is arriving today, along with four cables and a three-way adapter. That way I can compare chassis vs. signal grounds, the former being Andrews preference (I’ve heard Puritan prefers the latter).
I found that a sheet of Stillpoints ERS cloth cut to fit over the breakers in our homes main distribution box was a very effective help in enhancing both our audio system’s sound. Inexpensive as well. Unfortunately, it seems very hard to find these days. I do see that Michael Percy Audio still lists 11" wide SRS cloth sold by the inch in his current catalog.
Vera-fi Audio is running a special on their Main Stream and Snubway plug in conditioners again. I have tried a few different ones before, and HiFi AC Purifier is my current favorite (better than Puron plug-ins in my system).
I just ordered a set from Mark. He said Main Streamer is designed to be used on a AC conditioner/generator (in my case an expensive power strip), and Snubway should be plugged into a receptacle nearby the system, but not the conditioner itself.
I will compare these to the ones I am using. But Mark said both needed 400 hours to break in so I will not know for some time. He also said Snubway will help the pictures on big OLED TV more than even hi-end audio systems. I have a 75" so that is good to know in case it does not work on my audio system. If it is as good as the reviews said then I may need one more in future for HT.
I’ve had both of these for some time. When I remove them I want to put them right back in–that’s my proof of effectiveness. I have the Mainstream plugged into the same outlet that feeds the power cables and SDFB to my P15, and I have the Snubway plugged into the power outlet directly across the room on the opposite wall.
Do you find one is more beneficial than the other? Are they equally beneficial or complementary to each other (according to some reviews)?
I feel they are complementary, each focusing on a different spectrum. I had the Snubway first, and that was a definite improvement, then the Mainstream was a further refinement. I have Shunyata Research Defenders in use as well, I have four, each in one of four of the receptacles in the back of the P15, each in addition to a component plugged into the same outlet. Altogether these further contribute to a blacker background and a clear balanced tonal signature.
Great! I am looking forward to trying these in my system. Thanks for the feedback!
With a P20 or P15 where would the mainstream and then snubway go? One goes in last recpetical and one goes in wall. But does it for in same circuit as the P20 or in one “close” to it?
Where I have mine: the Mainstream is in the same power receptacle the power cord for the P15 is plugged in, and the Snubway is in the nearest other power receptacle (in my room it is exactly on the opposite wall as the previously mentioned one). I exprimented with other locations and this one is THE one.
Same here. Mainstream goes into P15, 20, or other conditioner/generator/power strip. Snubway goes into an adjacent location as I was told.
By the way, after 200 hours the break-in is done on these, and they surely help in creating quieter background and better soundstage.
My question is what is adjacent? Diff circuit? Or same one? I could just put in same outlet the power cord for P20 is in.
I have two 20amp outlets one has P20 and other P15. The room has one other circuit for the rest of the room. So snub could go there. Do I need a second snub in room next door?
