so i was in a local store today, and they had a mesa 400. not the 400+. it was setup with jan 6550's. does this mean it puts out 300 watts? i could get it for 750-800. it says 899 on the ticket. should i offer him something less? i played it through a mesa 2x10, with some cheap bass, and it sounded pretty good. i'm thinking that through my 8x10 with my jazz it will sound even better. does this sound like a good deal? i've been wanting a tube amp for awhile now, so i was thinking about selling my svp/qsc setup for either a mesa or an svt. what do you all think?