I have the Hartke VX 3500 combo. It's nice but it doesn't have nearly the output of my old Hartke 1155 combo that had the same 3500 head. I'm told that the VX line of cabinets (paper cones) have inefficient drivers. My thoughts are to upgrade the head to the 5000 or the 7000 as I think the 3500 would be a lot easier to sell than a combo cabinet with the head missing. Waddya guys think? Is this the way to go and if so, would the 5000 cover it or would it be necessary to go with the 7000 (provided these options would solve the problem) Or maybe I have to go with a new cabinet like the XL 115 perhaps. Thanks a million folks. Sincerely, a guy who should more about gear after 13 years of playing.