Well, I thought it was time to summarize my experience with the AudioPrism Ground Controls (GC's).
On my Amp and Preamp.
The RCA GC's didn't sound so great on my Preamp or Amp. On this equipment the GC's produced sort of a closed in sound. I dont know if its specific to my Pass Labs equipment or if the GC's are just not right for all analog equipment.
On my JL Subwoofer.
I recently put a RCA GC on my JL subwoofer. The powered sub gets its signal from one of the 2 outputs on my Pass Preamp.
Again, the overall sound quality suffered and became closed in. When I removed the GC from the subwoofer all was well again.
On my Bolder modded Squeezebox Touch.
Excellent Soundstage imaging and frequency extremes.
On my Cary 306 Pro CD/Dac.
Excellent Soundstage imaging and frequency extremes.
On my Eggleston Works Andra ll speakers.
Excellent, utilizing both GC's spades on the speaker biwire lugs and also a set at the Amp end.
On my Oppo 83 SE.
Excellent, surround quality enhanced and remarkable overall sound quality improvement.
On my Denon 5803 Surround Receiver.
Added + sonics to the already excellent sound quality of the Oppo.
I also noticed that too many RCA ground controls can also degrade the sound. So keep the RCA GC's to one per piece of equipment.
And, every so often ( once a month )remove just the RCA GC's for a day or two. When you replace the RCA's back in there will be a jump in quality. Perhaps this means over time the GC's settle and need to be rested. I really dont know why , only Bud can explain.
Again, these are just my observations YMMV.
