Did anyone experience Audio Prism's Ground Control


Fellow Audiogoner's

I wonder if anyone has any input on Ground Control spade versions? I am curious about the impact of these pigtails on your system's overall sound?

I also have their quiteline filter (4pack) installed in my HT room and they have helped lower the overall noise floor.

My gear -
Krell Showcase Pre-Amp / Processor
B&W 803s and 804s (rear)
Marantz UD8004
Audience aR12
Audience Au24e speaker/interconnects.
PAD Power Cables
lalitk
The "glare" is actually the ground devices charging. It takes a number of charge and discharge cycles before they stabilize, no matter who makes them. The Ground Control devices show a pronounced slant to high frequencies and a distinct narrowing of sound stage at first. Over about a 3 hour period this "uptight" character will collapse into ever more detail and stage width and then squeeze back into the uptight character. Each cycle takes longer than the one before and when finished they are always wide, even and clear.
I bought three sets of EVS Ground Enhancers to be installed on my bi-wire speakers and on my amps (Audio Note AN-E/SPe HE, Audio Note Conquest Silver). I experimented with every possible permutation of one, two and three sets.

There is no question that they have an effect that is initially impressive, and that the effect is cumulative. Volume appears to be louder at the same control setting. Image widens and deepens. Clarity intensifies.

In my system, to both my wife's ears and mine, the EVS Ground Enhancers emphasized treble to a degree we found unpleasant over time. We believe the tonal balance without the EVS Ground Enhancers is more natural.
Tvad,

I had a similar effect with my EVS as well. Mine sounded bright and grainy compared to my AP's. Bud is absolutely correct on the permutations with the AP versions as I heard this effect clearly Friday night and Saturday after installing my next set of AP's. I bought 3 standard RCA's to place on my unused amp inputs, reference HT receiver and found they did just that. Now, they have stabalized. I have placed an order for 3 ref RCA's and 2 more standard RCA's to play with adding in tandem to my receiver to add some detail that seemed to spread out and also to my preamp and go from there.
Bud, how many cycles do you believe it takes to stabalize? I seem to get the final settle in around the 3rd day or so. 6 moons seemed to have the same effect, around 72 hours or so.

Odd