In this video I play a mind blowing 1977 Marshall Superbass modded with a S.I.R #39 by Daniel Forsberg. I'm using a 2008 Gibson Les Paul R9 with a Seymour Duncan Alnico 2 Pro in the bridge. Daniel's recommended settings: Settings: Gain 2 (inside amp): 8,5 ; Gain 1: 3-4, Master: high, Precense: 7-8 ; Bass: 4, Mid: 8-10 ; Treble: 3-4,5