I have decided, after almost 20 years of playing bass, to buy a separate head and cabinet. Until now, I have played through combos. The band I am in now is loud and I need to push a few more units of volume out in order to have a better mix in the small bars and clubs that we play. I had a Hartke 15" cabinet with a 600 Watt 8 Ohm speaker fall into my lap. So I am starting with that. Like most guys in their mid thirties with jobs and families, I don't have a whole lot of cash to throw at this. I don't have the head yet, but I am looking on Ebay, CraigsList, and the local music shops for new and used amps. I have narrowed this down to three options, all of which have the demonic voice and the voice of reason telling me conflicting things. Behringer BX4500H (New) about $260 -Demonic Voice Says: More Power!! Muhahahahaha! And you own a Behringer now that you are very happy with. Forget what the reviews say. -Voice of Reason Says: Behringer has a spotty record. Gallien-Kreuger Backline 600 (New) about $300 -Demonic Voice: This Amp is new, sounds good, and it isn't a Behringer. It would be nice to have an amp that is from a different manufacturer and one that isn't panned by the community. -Voice of Reason: You can get more wattage and features with the Behringer. Ampeg B1RE 300 Watts (Used, missing a few EQ sliders and the limiter doesn't work, "as is" sale) at $300 -Demonic Voice: ITS AN AMPEG!!! You'll sound like Geddy Lee. -Voice O' Reason: You'll never, ever, sound like Geddy. This amp has one foot in the grave. The others are new and have warren tees. Ladies and Gentleman... your kind thoughts and advice?