Did anyone experience Audio Prism's Ground Control

Oddeophile, The Ref will not limit or reduce the soundstage , but the standard will increase it.
The Ref seem to add more center presence and more detail. I prefer the standards, but that is just me with my equipment.
Sometime though, you should try a set of the standards for your own reference,

I havent tried using the RCA Ref & Standard GC's together on anything but my Cary Pro 306.

Thanks Ozzy. One thing I don't really need in my system is sound stage increase at least in width as it is wall to wall now. If it increased further it might diffuse the sound stage too much. I may try a set of the standard GC's here down the road for the amp end to see how that works.

How did the Cary Pro 306 work out using both ref and standard RCA GC's on it?

Oddeophile, So far, I like the effect with using both the standard and the ref RCA's on my Cary Pro.
But, having both the ref and standard on hand to try in different places is a plus.

Agreed. Something I plan on in the upcoming months. Over the past 3 days my reference GC's on my speakers (I had to obtain 4.5 pairs since I bi-wire and bi-amp my main front and rear speakers) have continued to improve and now have pintpoint clear clean imaging that has blown me away so far. I plan on doing some critical listening on well known material this weekend. For now, I have heard some things that are striking and very welcome. No negative affects at all. All positive. When was the last time you picked up a tweak that was all positive??!!

In my set up there was no question the addition of the second GC for the woofers on the main speakers added to the improvement. I have heard of some folks with mixed results - some feeling not needed while others agree with what I am hearing there was a discontinuity between the frequencies near the crossover where it was clearly audible what had been improved on the upper drivers vs. the woofers. Adding the additional reference GC to the woofers and voila'! Almost instant improvement.

So far, so good and color me happy. More to follow of course as I get a chance to really listen to some well known material compared to what I have had time to deal with so far the past few nights.

I do feel there is additional improvement over time beyond the one hour break in, however. At least to me last night seemed somewhat smoother, more detailed and relexed even over what I heard the second night (night before).

So far, well done Audio Prism!

Received 3 sets yesterday of the EVS Ground Enhancers.

These look very similar to the Ground Controls except without the spades or bananas. Mine have just a straight wire that I placed into the hole on my speaker spade lugs.

I am using these Ground Enhancers on my Home theater system along with several of the Ground Controls.

Well, immediately I noticed much more presence in the surround channels along with more weight and definition.

Thus far, I consider EVS Ground Enhancers to be the equal in sound improvement to the Audioprism Ground Controls.