Michael Fremer

A few issues ago, Sam Tellig gently mocked me with a comment about mobile record players. For those of you too young to remember, or who thought he was kidding, here's a photo of the late, great Lawrence Welk enjoying "Highway Hi-Fi" in his 1956 DeSoto convertible. The players, made by CBS-Columbia for Chrysler, featured a new 7" format record, the XLP, which provided up to 45 minutes per side thanks to its 16²/₃rpm speed and its pitch of 550 grooves per inch—twice the density of a standard LP. Playback required a special 0.25-mil stylus tracking at 2.5gm—about half a gram less pressure than, say, a $7600 Clearaudio Insider needs to track a regular LP in your living room! A flywheeled motor (there's nothing new under the sun) kept the 'table's speed stable under impossible conditions, and an ingenious arm design supposedly kept the stylus in the groove even around hairpin turns.