Okay, laugh if you want to, but I'm a bit amp/speaker retarded. What I want to know is, an I hook up an amp sort of like a practice amp up to a cabinet speaker via the External Speaker jack in the back?(example: Peavy Micro Bass amp hooked up to a Gallien-Krueger cabinet)
Yes, but you need to make sure that the output impedance on the amp is the same as the input impedance on the cabinet, and depending on how loud you want to turn it up, that the cabinet can handle the amps power output.