Ian Hill retired his vintage Jazz bass decades ago and now exclusively rocks his signature Spector models. He brings along four of them and strings them up with DR Black Beauties strings. Two of the quartet use the BKB 50 set (.050–.070–.090–.110) and are tuned down a half step. The other two use the lowest four strings of a Silver Star 5-string set (.065–.085–.105–.125).