I have no reason to doubt the efficacy of this product as I realized a positive SQ benefit with a Shunyata Venom Defender plugged into an outlet which also has my power conditioner plugged into. However, I don’t get these types of comments
"It became so grainy and scratchy. Soundstage and image were unbearable that I had to plug them back in"
One would think that if the system was this unbearable to listen to it would have been quite noticeable before installing the Puron, or anything like it.