I have two 18" SI D2 running off a QSC GX7. Its good...very good, but not leaving well enough alone I picked up another flat pack and found another SI D2 locally so I'm going to end up with 3 D2's. I know my QSC is not bridgeable and not 2 or 3 ohm stable so I'm looking for options in a single pro amp that can run 3 ohm stable to run all three subs. i could just add another amp i suppose but I have to take things apart to do a fan swap or move the amp because of the fan noise so I thought while I had it apart I would try to sell the qsc and pick up something that can run my new set up. Options?