Well, my major G.A.S. attack continues, thanks to an unexpected big fat bonus check I received from my day job. After reading this forum, I took the plunge and bought a Schroeder 21012 cab. I've played it one gig so far, and it's awesome. I also recently bought a '98 MIA P-bass off of eBay, which is great. My other main gigging bass is a Reverend Rumblefish PJ. So, now I'm thinking of "upgrading" my amp head to go with the Schroeder 21012 cab. I currently gig with an Ampeg SVT-3Pro; it's served me well but I've never been completely happy with the tone, and I'd like a bit more headroom. I had to buy the Ampeg very quickly on short notice at GC for a gig that evening, when my old Trace Elliot head fried during the previous night's gig. (Luckily, I have a 200W GK 1200SEB I bring as a back-up.) I currently gig in a blues band and a hard rock/metal band. I attempt to get a "Duck Dunn" type of tone in the former, and a "Steve Harris" tone in the latter. (Both bassists are big influences of mine.) We play small to medium clubs, and an occasional outdoor gig. Usually we have no PA support for instruments. Here are the heads/options I'm considering. I don't necessarily have a good ear for EQ-ing an amp, so I like to get a good tone without too much tweaking: 1. Thunderfunk 550 2. Yorkville XS800H 3. Kustom Groove 1200 4. GK 1001RB-II 5. Some preamp/power amp combo? 6. None of the above, or just keep the Ampeg. Any comments/suggestions?