Fist I am not sure if this is where to post it bu since it is about amps I thought here. Feel fre to stick this in Miscelaneous if thats where it should o and if thats the fact I apologise. I am looing to builsd a P.A. system for our band. I have a 16 channel mixer with 3 aux sends and 2 sets of mains. We are going to want to be able to run drums, vocals , Bass, 2 guitars and depending on the song another guitar,saxophone, bongos or harmonica through the PA. I would like to be prepared and be able to play Large clubs with this system, I really dont know how much Power would be Ideal in this situation. I looked at a set of Mackie powered mains that were 400 wats rms and 600 wats peak (I thinkthats what they were) and at nother store cabs that were 250 watts and a 600 watt power amp. I dont know if these will be enough to handle all of the band at high volumes. I looked in a carvin mag. and saw for the same price as the Mackies iI could get, 2 DCM2000 and 2 TR1502 15" 600 wattcabs and 2 18-01 18 inch cabs. but i cant find specs on the 18. Wich system do you think would be best? Or something lse altogether. I am really worried about how loud it will et and still sound good. Thanks.