I'm a sucker for materials, whether it's finishes for loudspeakers and other audio equipment, a shoe's fine, supple leather, a crisp cotton shirt, or a cozy cashmere scarf.

Apart from their inherent sensuousness, materials can make a difference in the sonics of audio components, especially loudspeakers.

Cavitation revolutionized record cleaning more than a decade ago, when Reiner Gläss's Audiodesksysteme introduced its original fully automatic machine. Mr. Gläss's innovative machine, which automatically spun the record in ultrasonically cavitated water, then dried it with fans, at first was plagued with reliability issues, and because it is sealed, it was not easy to repair.

DeKalb, Illinois, 1971: When I was in college, my anthropology professor would invite me and a few of his other favored students to his house for fondue parties. We sat on shag carpet around a glass-topped coffee table, drank wine, and dipped vegetables in molten cheese. The stated purpose of this rite was to discuss Margaret Mead or Franz Boas, but that was obviously a ruse. The gathering was really about excessive pot smoking accompanied by coughing fits and the telling of ridiculous stories, all while playing LPs on his top-of-the-line Dual turntable/record-changer.