Jimi Paige has been photographed using a Luxman preamp with McIntosh amp.
McCartney has two Garrard turntables in his listening room per photos.
Marvin Gaye was photographed with Mac amp, Thorens turntable, and a Teac reel-to-reel.
Magic Johnson was a DJ at Michigan State. When he made money in the NBA he had a pretty sweet system, but I don't recall what the gear was at this time.