Less than $700 can pick you up a nice power amp on the used market. Check out Ebay and Craigslist.
I picked up a cheap used power amp to get me out of a jam, a couple hundred bucks found me a Behringer Nu6000DSP. Fed by an Ampeg SVT-IIP preamp, I used it that weekend for a series of shows and have played countless rehearsals and several shows with it since. If it dies on me I feel I have already got my moneys worth out of it, but it just keep ticking... and I don't play quietly.
My point being, don't rule out inexpensive class D power amps. They sound good, they are lightweight and have plenty of power.
A 2ch power amp would handle your cabs nicely and you would have seperate volumes to match the outputs. This is how I did it with a Fender 8x10" and a Mesa 2x15"
Now, I have since picked up a Mesa head. But I still use that cheap poweramp in the rig. The Mesa head powers the Mesa cab, the Behringer poweramp powers the Fender cab
MIA Jazz, Les Paul Bass, VM J-5; Basis M-2000, Eden WTDI, Powerhouse 215 EV, Fender PRO 810
Last edited by Mykk : 11-30-2012 at 05:56 PM.