ok so i have a line 6 spider 112 ( lets keep the flaming to a min. ) and i was wondering if there was a way to use it as basically a head. like if i built a 2 12 cab and put 2 8 ohm speakers in it then they would be wired to 16 ohms am i correct? could i then just connect the speakers to the original wire after disconnecting the original. i know its not the best amp but i can get a good tone out of it from my pedals so i would like to use it but upgrade the cab.