Hi there! Might get a bit long but here I go: I play in a punk-rock/hardcore/ska band. On our first gig we played through this really high-end PA (lucky for us) so I didn't have any problems with my seriously underpowered amp. But over the next few months we'll be playing lots of gigs where we're not sure if there'll be that kind of PA. So now I'm looking for a new amp. What I like sound-wise is a good bottom-end but with a very transparent sound. On my old Marshall 3-band with Fender Mex P-Bass this would have been all three band cranked to the max and the tone control on the bass to the "brightest" setting. I also very much like the sound of the bass on the newest GreenDay album. So here for my questions: To give you an idea of the price-range I was thinking of I had an eye on the SWR Bassman 750 at the highest end. More in the range of a GK 1001RB or Bassman 350. 1: How much power do I need to play a gig with about 300 people and to keep up with 2 guitars? 2: What brands should I try? 3: What cabs would you suggest? I can afford only one so I thought about a 4x10. 4: I saw a good offer for a Trace Elliot 12-band 500W top with their 4x10. Would that be a good choice for my needs? And one more question of a more general nature: Why do I see lots of cabs that are rated at less than the power of the amps from the same manufacturer? e.g. SWR's Goliath is rated at 700W, I think, but the BassMan 750 does punches out up to 850W of power. Same goes for Trace amps, like the 500W top with a cab thats rated at 320W, I think? Thanks in advance. I know there are a lot of similar threads and this has to get quite boring for you people, but I really don't want to waste my money.