Did anyone experience Audio Prism's Ground Control

Ozzy,

Yeah, I had the ref GC's on my speakers a pair per speaker for bi-wire and bi-amp prior to insalling my first walkers on the upper posts. Loved 'em. Added the walkers on the upper posts and - wow. then, just added the walkers on the bass posts on wed night. they are breaking in now. Initially, whole system went totally dark and lacking definition. Typical of the first insert of the walkers as I experienced the same thing until after a few hours when they began to break in. Now, lightening and tightening up by the hour. I am immensely satisfied and still have at least 10 hours to go for the walkers to break in (total min 20 hours according to Walker). I just ordered some standard RCA's for this weekend which should arrive by tomorrow I am guessing. Should be interesting to add to amp/receiver/preamp areas one at a time once the walkers break in.

You are 100% correct these things are so system dependent. I did not have quite the glare you speak of with the refs, but I did with the EVS ones which are going back to Ric today via UPS. They created an immense glare at first for about 2 days on my systme then settled down but were fuzzy sounding compared tot he ultimate clarity I received with the ref GC's on my speakers.

This is an abject lesson to all reading - you gotta try these in all types and places to see how they work on your system. Everyone will be different.

Enjoy, Ozzy. Have fun.

Oddeophile, Tried to email you. Send me a email

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.

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.