I use C4 at the moment... but i think it's still to boomy (could be my Behringers or the room) i've read that some people use a compressor to compress the guitar tracks a lot (high ratio and fast attack and release) i could be wrong.... i could cut some of the boomy freq. before going into the C4... lets give it a try when i am at home still learning and i'm loving it so far!
Well C4 is a multiband compressor, so it compresses certain bandwidths (ranges of frequencies) rather than the whole thing - cuz generally a rhythm guitar track is so compressed from the distortion that no more is needed