Did anyone experience Audio Prism's Ground Control

Well I just tried it . I used some of the Radio Shacks 9V battery clips and soldered them to a RCA. Plugged the RCA into one of the unused RCA inputs on my Amp (I am using the Balanced inputs). First, I tried it with just one RCA and then with 2.

Resultd so far , not as dramatic as I hoped but perhaps more detail and dynamics.
But then I added another one of these to my Dac along side a Ground Control, it seems the soundstage and detail increased.

Have'nt tried it on my speakers yet So, I will experiment further.

Thanks for the advise Ozzy. I just ordered a pair.
Did you go with the cryoed or non-cryod?

I was getting close to trying out the Walkers, but
then I came across a great deal on the new Stillpoint
Ultra SS footers. I hear they are a significant upgrade
to the regular stillpoints with risers and inverse risers
which I have. Like the AP GC's the stillpoints are another
one of those rare tweaks that improve sound staging and detail
while paradoxically sweetening the highs with better timbre.
The Purest Audio Design digital filter is another that I am
now playing around with.

So, the price of the Detail Magnifiers is ideal for my Gallo
Nucleus HT speakers. For my DeVore Super 8's I will have to
wait and see if the Walkers reference HDL are that much better.

Scottmac62 , I did'nt go for the Cyro version of the Detail Magnifiers. Probably because it would have added about 4 weeks to the order. But, I would like to know if it does provide any sonic improvement.

Keep me posted on any difference when you try the Walkers.
I will also look into the your other tweaks.

I no longer see any benefit with the 9V battery idea. The Ground Controls are still wayyy much better. But at least I got to try it for myself.

Ozzy, according to Earl, the non cryo version is warmer
than the non cryo version. Warmer is a better match for
my HT system. I wish we could get some feed back on how they compare to the Walker mrk3 and the Reference plus.

I am also curious about your experience with the Audioprism
reference GC on your Cary cd player. I had a very similar
experience on my Dac. The standard alone gave a nice rich
tonal balance but became a bit too congested when music with
more bass was played. Adding a fully burned in reference GC
and letting it settle over night was spectacular that evening. Not only did the width and depth increase but there
was an added sense of illumination behind the decay trails.
The added sense of realism was quite addictive.

Unfortunately, my sound stage constricted in between the speakers the next day and remained this way. I have tried
recycling the Reference GC, but have not had much time to
experiment. It is interesting that I also have to reset
my Synergistic Research Powercell SE every few weeks by unplugging and replugging becasue the same kind of sound
stage narrowing and upper frequency boost also occurs.

Scottmac62, I have not unplugged my SR Powercell but I do periodically unplug my Preamp. My Preamp has no on or off switch so it is on 24/7. Sometimes it just seems like the Soundstage has gone flat. Unplugging the Preamp for a few minutes then plugging it back in seems to rest it. I might try unplugging my Powercell, thanks for that tip.

I think you meant to type that the Cyro version is warmer?
My system leans toward the warmer side already. The Detail Magnifiers seem to bring out the bass quality quite nicely.

I don’t know if we will ever hear a fair comparison between the Walkers and the Detail Magnifiers. Because when big $$$ are spent on the Walkers I doubt if anyone would say the Detail Magnifiers are as good or better.

Perhaps if the Walkers had a trial period, I would try them myself.

Getting back to the Ground Controls. It seems the latest buzz is connecting a 9 Volt battery to its negative side only and then attaching that to the negative posts of either spades or RCA.
I have tried it in several places and though it seems to be ok in places I do not have the Ground Controls, they do not add to the Ground Controls enhancement.