Did anyone experience Audio Prism's Ground Control

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

This sounds like an interesting product. But I am putting a 8' ground rod and connect it to the chassis of the preamp. Will my system still benefit from AP GC?

Oddeophile,

To completely stabilize, in my system, about 6 to 7 hours, but then my system is already full of the things and has been for three years. 72 hours wouldn't worry me, but I might become impatient....

Vet93,

Yes they will still work. Maybe better maybe worse. There are just too many variables in individual systems for me to say something absolute. I will point out that they have a money back guarantee return policy. Just send them back within 30 days. I would suggest you start with a pair of Standard lug GC's for your speakers. If that provides something you like then slowly investigate additional GC's until you are satisfied.

Bud