Movie characters pondering momentous decisions are sometimes subjected to a raging debate between an imaginary angel on one shoulder and an imaginary devil on the other. Think of Larry "Pinto" Kroger deciding whether to take advantage of his passed-out-drunk date during the infamous Animal House toga party.
Audiophiles, too, are often pulled in opposite directions. But instead of angel's wings or devil's horns, our imaginary duelists are decked out in T-shirts, one with a logo that says "…