I'm playing a 1972 Rickenbacker 4001 through a 2015 Marshall 1987X/1972 Marshall 1979A 4x15 Rig. The Bass/Rig has a huge tone reminiscent of Lemmy and John Entwistle. I'm also doing some cleaner finger picking on the bass using a Mesa Big Block 750 and Mesa 1x15 Diesel EVM15L Cab.