If you're as worried about the looks of your audio system as how it sounds, you should probably have your head examined, and you might just be in the market for some pieces from the Mark Levinson 40th Anniversary Collection ($6,000-$25,000). Created to celebrate the legendary audio brand's 40th anniversary — surprise! — the lineup includes the No. 52 Reference Dual-Monaural Preamplifier, the No. 585 Integrated Amplifier, the No. 519 SACD Disc Player and the No. 560 Digital Audio Processor, all of which arrive with gorgeous, minimalist designs that would look as normal in a museum as they will in your home theater cabinet.