Here we go: I have a Workingman's "Tower of Power" 8004 head that I got off Ebay for $400. A steal considering the features and power (750Watts, I believe). I also got a used Goliath III cab (also 750Watts, I believe) off of Ebay for about $480. I've always like the sound pretty well, but my tastes have run into more smooth, less "active bass" quality. My problem: There's not enough smoothness in my bass and I plan to add a 5-string to my collection so I'm going to need/want a 15" cab. I believe my amp is feeding a gigantic cab only 350 watts at 8ohms right now and if I got, say, a Son of Bertha it would kick out the full amount. 2 questions: I've heard a LOT of talk about the Son of Bertha cab being too midrangy and not able to handle the low end all that well (given the price). 1) Should I stick to SWR due to the "continuity factor" or what are my choices to similarly powered 15" cabs that would go well with my current setup and deliver what I need? 2)Also, anybody see any potential problems with my current setup? It's a discontinued WorkingMan's head through a Professional Series cab and I've never been good with impedance/wattage vs. tone/output. Any problems? -Eric. EDIT: If it helps (and I feel horrible for admitting this), the best sounding rig I've heard so far was a Gallien-Kreuger1001 head through a 15" GK Cab of some sort. I played my exact bass through it at Guitar Center (minus the upgraded pickups) and wanted to shoot myself for not having gone with GK way back when.