Did anyone experience Audio Prism's Ground Control

Budp, Dont you need to disclose that you are a dealer for Audioprism???

I am not a dealer. I am just the idiot with the idea. Music Direct and I think one other (I will check on this) are dealers. I don't even make the parts, though I do design and build high level audio transformers and provide EnABL patterns for free use to DIYer's and also as a source for those who want the benefits but don't want to learn to do the process. The Ground Control is just a spin off of R&D on cables, to obtain as sonically invisible a cable as possible, to allow me to further refine the transformer designs for audio reproduction.

AudioPrisim is an entirely separate entity and the GC's are being marketed and manufactured by them. This is actually the only way they could have been brought to market, as I do not have the contacts in the business they do. They are in fact the people who drove the commercialization of the idea, so without them, there would be no Ground Control.

Bud

Just to show how far away from the sales end of GC I am, here are the names of the four dealers involved. Acoustic Sounds, Elusive Disc, Galen Carol Audio & Music Direct. I hope posting these is still abiding by the forum guidelines.

Bud

I would like to know if anyone has tried to DIY?

Would running a wire from the neg speaker terminal to an electrical ground elsewhere have any detrimental effect?

In many elderly systems, pre WWII, they ran a wire from the neg terminal, on the driver, to the plated metal basket. This is a ground plane for the driver, there is no particular control over the materials affecting the electrostatic moments in the AC signal, but it has to be better than what is available in your wall, out in the yard and down the road to the substation. Not that service should be by passed in any way, but an alternate is advised, at least for the speaker.

I would absolutely NOT connect the speaker ground to the house system ground, under any circumstances. You are almost certain to form a ground loop antenna and many new and unusual sounds might be the result.

If you want to experiment with a loop of wire, use lamp cord, about 2 feet of it. split it into two halves, strip the ends of each piece and twist them together, making a shorted turn of wire. Connect this to your speaker,s black lug. This will not provide you with a carefully controlled set up like Ground Control does, but you should find some quite noticeable differences in performance.

Bud