audioholic
A person who is fixated on good home theater sound in a practical sense, without regard to snake oil products or marketing gimmicks infused with pseudo-science. Audioholics are aware of, and value, measurements when evaluating gear, though ultimately purchasing decisions are made with the ears. They differ from audiophiles in that they enjoy multi-channel surround sound and are less susceptible to ultra expensive components that "command" respect solely based on price and prestige (or a psychological desire to justify your lavish audio expenditures).
Oh he would never buy speakers cables at $5000/pair, he's a dedicated audioholic who knows better.