http://www.ayre.com/products/ibe.htm
Ha! Please don't tell me you're (and they're) seriously suggesting that playing some test tone somehow "[demagnetizes] residual fields that build up in your components over time" and makes your system sound better. What a load of crap. They even state they don't have proof of the mechanism involved.
Hey, I've got this doohicky, that if you keep it pinned between your elbows behind your back while listening, will lower the noise floor, increase the soundstage, and demagnetize the negative auras surrounding your equipment, transporting you into a mystical field of musical nirvana. I can't prove it or tell you why it works, but I'm sure if you pay for it you'll understand what I mean.
