Hey guys I've recently have been trying to build the perfect rig and need help with the power amp pre amp thing. I just purchased an ampeg b4r and am not really happy with it. The power is good but the tone sounds the same when pshing it. I just can't get the right sound with it. I am running a genz benz xb 6x10 and 1x18. I've tried to read into getting a seperate pre and power amp but can't find a lot of info. Any one have any suggestions? Is there away to adjust volume and bass treble mids etc seperately to each cab? Anyone know if I would need 2 power amps to do that? I really have no clue where to begin. Any helps would be greatly appreciated. Thanks.