I have a Hartke B200 combo standing here at home, and I noticed at the back there is an 8 ohm speaker out jack. (The one at the left here: ) Now I was wondering, what options do I have to connect this combo to an external cab to use the combo as a head? Are all 8 ohm cabs supported? Can I get full power out of any 8 ohm cab I connect with the combo? What's the maximum wattage of the cab when I want to use it with this?