Thanks to reviews and information posted, i bought a gk fusion 550 yesterday. Now here is the tricky part: I want a new cab that is a perfect match with this head. Ideally 8 ohms because that gives me the option to resell or upgrade. My ideal rig would be a GK NEO 412 but due to weight,size, and price, that's out. I really wanted to get 2 GK NEO 15's, but my gui**** has (unfortunately) convinced me that 10's are the way to go. 15's would give the nice, warm, unforced sound of the lower register, but they lose their rock brightness when compared to 10's. Not only am i confused as to what i should tell him, i'm confused as to what amp to get. He's a nice guy that once i buy something, he won't give me crap for it. I really wanted a gk neo cab because of the price, weight, and full bi-amp functionality. my head has the feature, why waste it? he's telling me that a 610 or 810 ampeg is the way to go. and if not then definitely a mills 610. What to do?!?!