I'm trying to figure out the extension cab thing. I use a GK MB150 and have some gigs in bigger venues booked. I am currently using a little 10" Carvin thing and it works fine. I actually got a very nice compliment and my gig last night. Some dude pulled me aside and said "Man, Your tone is HUGE". I do feel like I can upgrade though. The ones in the running now are upgrading the driver in the Carvin cab (I ordered an Eminence which I can return) , the Epifani UL2-110 which Musicians Friend has for $449 or the Aguilar GS112 which a local store has for $419. I have found a few used things for less but I'd like to buy new with warranties and all if possible. I've heard great stuff about EA gear but it is all 4 ohm. It has to be smallish and 8ohm. Let 'em fly. I have seen other threads to this effect but could find the right thing in my searches. Thanks.