Is there seriously no consumer protection related to these products? In virtually any other business area, other than homeopathic supplements, if I create and market a product that doesn't do what it says it does I am open to tort at the very least and potentially consumer protection agency violations. These "audiophile" products are claiming to remove problems that don't exist. Digital interfaces, while they do experience interference, either compensate automatically or are pretty much immune intrinsically. If you want to sell a surge protector or some form of repeater that is great. But unlike analog audio signals, which will pass the distortion on to the speakers, digital signals cannot be "filtered" only repeated and/or electronics protected. Even then the promise of increased audio quality cannot be delivered because the decoding device is entirely responsible for that at it's end post stream. These products bend beyond the funny and into the realm of fraud.