One caveat to the info I provided above: You have to check which version BC 30 you have. The people at Gibson were monitoring all the mod talk on their website and others and some of the revisions that posters came up with were incorporated in later versions. As mine was a version 1, it needed all the mods that the amp guru's advised. They worked on mine.Originally Posted by redgibson
In lieu of doing the circuit mods, try some radical EQ settings like turning the treble almost all the wat down and the bass way up with the mid cranked as well. This amp responds totally differently in its stock form compared to all other amps I've used.