No matter how I set my ampeg, I always get one of three sounds, dark and mellow, slightly brighter (not by much), or something terrible. I'm looking for something that doesn't break the bank, but can turn my sg reissue with flats from a groove machine to a slap n popper in an instant (and don't say this isn't possible as my crap practice 'drive' combo can do it no problem). I'm looking for something relatively cheap (preferably a combo if need be), any suggestions?

