Did anyone experience Audio Prism's Ground Control

Ozzy and Oddeophile, could you elaborate on which input or
outputs on your HT receivers that you have had the best results. I would like to try the standard RCA's on my HT
receiver, but there are way too many inputs and outputs to choose from.

Ozzy, I am curious if you are still using one standard and
one reference RCA on your Cary cd player in your two channel
system. I am also curious if adding the reference rca to the standard rca gave any decrease in harmonic richness.

Interestingly, I have tried the standard rca on my Naim XS
integrated amp input, and I am getting an increase in harmonic richness that makes vocals addictive. However, I am also experiencing a decrease in sound stage width. So, at
this point I have the rca on my dac via a rca y-adaptor.
The wide sound stage is back, but the vocals are not as rich. However, I have not had any time to let it settle in.

Scottmac62.

Almost all commercial consumer electronic gear has a common ground between input and output and left and right channel. So, in most you can plug the RCA into any input or output, except an SPDIF input or output, anywhere ever.

How long was the RCA on the gear that lost soundstage? You may not be aware that there is a cycling that occurs. Changes from almost mono and elevateds high frequencies to wider soundstage and very flat frequencies, but it goes through a number of these cycles before settling down. Takes 6 to 7 hours of continuous music in my system from unused condition. Some folks report an even longer period of this "breathing". Different for every single piece and type of gear, but the end product for a standard GC is wide and deep sound stage.

Just to make sure we didn't ship the wrong part, look to see if the ground petals on the RCA plug are gold colored.

Bud

Scottmac62
I am no longer using both the Standard and the Reference RCA GC’s on my Cary. I am now just using the standard on it.
Again, my experience with the GC Reference is that they do not provide a positive quality with my 2 channel system. They seem to constrict the soundstage and increase the upper midrange/lower treble.
The weird thing is the Reference GC's seem to work great with My Home Theater Equipment. For my Home Theater Receiver (Denon 5803) I have the put the GC Reference RCA on one of the 7.1 inputs since I am only using the 5.1 inputs. I also have a Standard RCA on my Oppo BP 83SE unused 7.1 outputs.
So, I guess experiment is the answer

Vett,

I have quite a bit of Rick Cullen Modified PS Audio equipment, the PCA2/HCPS preamp, GCA500, two separate power plant premier power plants, one for analog, one for digital, several duet conditioners in various places, all PS Audio premier SC silver/copper power cords throughout, silver IC and speaker cabling, Pioner SC-09TX reference surround receiver, Pioneer BDP-09 Blu Player, PS Audio PWT and PWD Digital playback system, all silver HDMI cabling, two JL Audio F113 subs, Pioneer KURO Pro151 60" plasma, 4 Swan 6.1 speakers, C3 center, all equipment on Aurios Pro isolation bearings. Alternately, I have a MESA Engineering Baron tube amplifer. Lastly, I have Walker Audio Reference Plus HDL'S on all speakers. Front L/R speakers are bi-wired, back speakers bi-amped.

I have the GC's standard and reference RCA on my preamp/SC-09, standard RCA's on my inputs to my amp, and reference GC's on all speakers. I am awaiting a shipment of one ref RCA and one regular RCA to place on both my PWD and BDP-09 alternately, for now and see how it goes. The last set of RCA's are burning in now on the SC-09 and preamp and should be settled in by this weekend sometime.

My personal results have been that Bud's version worked much better for me in tandem than did EVS version. But, that is just my system. I understand many others have used the EVS to great improvement. I will post more once the most recent RCA's settle and I get a good handle on the final results + playing around with them in/out.

Scottmac,
Let them settle in for a while. Bud says several hours. In my system I hear changes in sound stage, image tightness, to bloom, then tightness then settle + changes in harmonics over a period of several days. Typically, so far, the improvement was in my system most seen on the 4th day. I hear no decrease in harmonic richness with the ref versions. In fact, the instrumental color is superb. I did note, in mine, so far, that using the standard and ref models in each component yields the best results. Remember, that is my system, and each varies. The harmonic warmth is retained as well as a purity and open, detailing that is really superb. Images are tight, spot on and in surround that is intriguing to me. Remember, though, as of now I still have several days for the last set to settle in for final judgment and determination of sonic changes. While I am watching TV in surround right now I hear the sound altering a lot and sound staging as they settle in per Bud's comments on their "cycling". I should have a good handle on them by Sunday night.

odd