PS Audio DirectStream Power Plant 12

[hardcore]

I found a remarkable effect today.
I have been a little bothered by a VERY slight perceived electronic "haze" over my music from the Devialet / Mac Mini / powered subs system.
It still is better than almost any other system I have heard, but not QUITE perfect.
For some reason, I tried plugging one of my subs into the PS Audio Powerplant P12 that I use.
Haze reduced. So of course I plugged in the other sub- even better.
So it seems that the cheap plate amps on my powered subs are bringing some kind of noise in from the mains, then feeding it to the Devialet BACKWARDS (as it were) down the RCA. Crazy.
But for now- it sounds even better.
Audirvana plus Qobuz plus Dev 1000 Pro CI= believable

I had the same impression of a slight degradation in sound quality when my sub is connected to the Devialet. I got one of these high quality subwoofer isolation transformers, model SUB-2RR from Jensen, and it worked well for me. Works even though my sub is only 2-pin powered (no ground pin). Depends how far you want to go with your tweaks, but something worth exploring IMO.

SUB-2RR | Jensen Transformers (jensen-transformers.com)