I would like some more volume & headroom from my current set-up: an Ampeg B2R and one Aggie GS112. The Ampeg will push 350 watts at 4ohms, but only 200 watts at 8ohms - my lone GS112 is 8ohms. I know adding another 8ohm cab would create a 4ohm load which should bump the Ampeg up to 350 watts. Forgive my limited knowledge on this, but I am looking for creative ideas in creating a 4ohm load cheaply so my Ampeg will then push 350 watts. Any alternative to adding another cab? Maybe adding a small, inexpensive practice amp to the rig for the sole purpose of creating an 4ohm load. Are any of these types of amps 8ohms...? I'd like to keep my GS112 since it's portable, but don't want to spend the $$$ to get another nice cab to go with it. Help!