I'm a little rack gear ignorant. I've only really had one great pre/power amp set up. (SVT II pre and QSC PLX) But now I'm wanting a rack rig that has the capability to run 2, 4 ohm SVT 810 cabs. The obvious option is the SVT 8 pro. I'm not spending $2k on one. $1200 used....yes maybe, but they never come up. So I am considering getting a second 7 pro(love the head soooo much) run them in the same rack and just split my signal into them and each powers its own cab. Plus for single cab applications I will always have a spare 7 pro with me just incase. OR..... Getting the custom FJA bass pre built for me I have been wanting to do and run a power amp with two 4 ohm outs and problem solved. ORRRRRR...... It just occurred to me....why could I not run a slave with my 7 pro? Just use the 7pro's pre and a poweramp so I can have two high wattage 4 ohm outs? Would this not work? Would it be harmful to the 7 pro? I know its not much more for a 2nd 7 pro than it is for a real nice light weight used power amp that will push 1000 watts + per side in stereo at 4 ohms. I'm just brainstorming right now. What would you guys do?