Let's say I had an 8x10, an SWR Megoliath to be exact. And the amp looked like this setup: Ampeg SVP-PRO Compressors,etc. in between Carvin DCM1500 SWR Megoliath In that order. Now what if I later desire the tone of a 15" or 18" speaker? I know I cant hook anymore cabs up to that Carvin DCM1500 because Im already at the 4 ohm load. SO would it be possible for me to construct another amp, with just another Carvin DCM1500 and a Big Ben or a Big Bertha? Could I somehow split the signal from the Ampeg preamp for 1 side to go to the Megoliath and the other to go to the big speakers side? Would a different preamp be needed because maybe I would need 2 channels as opposed to one? Would I need a crossover somewhere in the rack? Your advice would be greatly appreciated.