I'm planning on getting a Hartke HA3500 o HA4000 and a 4x10 cab.. I'm thinking of either a VX4x10.. The question is.. I didn't know this before, but that cab has two imputs..and as I'm just learning about setting this things up, i'm wondering this thing is supposed to work by hooking both outputs of the amp to both of the inputs on the cab.. Is it???