It's often noted that almost every component review (in magazines or online sites) is positive.* How about reviews of gizmos? -- by which I mean pucks, cones, stands, cable lifters, power conditioners, USB filters, special Ethernet filters and switches, cables of all kinds, special outlets, reclockers, attenuators, liquid cleaners, record mats, static removers, crystals, noise-removing bricks, gongs used as acoustic treatments, cryo treatment, and so on. I can't remember a single review (in a magazine or online reviewing site) that said, "This made no difference," or "This made the sound worse." If you can, would you kindly post a link in this thread? To clarify, I don't mean reviews by an individual -- I've seen those -- but rather reviews under a masthead of some kind, even if of a one-man reviewing site. Thanks! * My perception is that Stereophile of all publications is most likely to (very gently) bring up flaws, usually in the measurements section.