I currently play guitar, but I've been playing my friends basses alot recently, and have decided to stop playing guitar in my current band and start playing bass (in the band, which was sans a bassist). So, I need an amp that's loud enough to keep up with a Marshall DSL401 and a drummer who plays very loud. I want a quality amp, and preferably a tube one. I'm looking to spedn around $800 or less, new or used, for a quality bass combo. Of course, I'll try anything out before I buy it, but I'm just looking for some very broad reccomendations of what's good, what I should bother looking into, what I should hunt down etc. I'm not into the really bright sounds, so I'm not looking for anything with a tweeter. I also don't need any built in effects, but I wouldn't be opposed to things like reverb and possibly distortion built into the amp. I don't really have a specific tone in mind, so if you could just go nuts and reccomend everything that seems to be in my range, that'd be great so I could go hunt down lots of different amps and try them out. The bass is a 4-string, Warmoth J-Bass with a Black Korina body, Maple neck, Ebony fretboard, and Seymour Duncan vintage jazz bridge and vintage p neck. I'll be using D'addario nickle plated, round-wound, 45 strings.