Chris, you may well be right, as the 15db uncut still sounded rubbish on the compact, which was never an issue with the Markbass Jeff Berlin / compact combination that was truely earth shattering, although would not get any louder after 4 / 10 on the volume. I suppose I would need a bi amp to let the compact handle the lows allowing the S12 to take care of everything else. I suppose the 15db cut acts a bit like a thumpinator, but seems to be taking out a lot of the oomph in the range I play in.