Rather new to this kind of thing, so any help appreciated! Our guitarists have upgraded their rigs to stupid loud, and my Sunn Beta Bass into an 8x10 isn't loud enough anymore. I found a guy who's selling an old Sunn Coliseum Slave--320 watts at 2ohms. I'd like to set up the Beta as a preamp into the Slave. Once I've got that set up, I want to run 2 4-ohm cabs out of the Coliseum (probably the 8x10 and a 2x15). My question is two-fold. First, what is the correct way to run the Beta into the slave, and second, can I still run additional cabs out of the speaker ports on the Beta if the Coliseum is up and running 2 cabs?