I'm in a cover band that runs our own sound. We've been using a Behringer pmp6000 mixer for mains and I recently bought a mackie FR800 to upgrade our old monitor amp. We have 3 yamaha 12" monitors and 2 JBL tr125 mains. Volume is pretty well maxed out on the lead vocal and main fader to carry over the drums (mic on kick, toms are electronic). After sticking a mic out in the room to record set 2 and 3 of our last gig, I'm hearing 1) a need for vocal compression. the lead vocals didn't cut thru when he goes into the low register. We're all good singers but our lead guitarist has pretty poor mic technique. 2) a need for compression on acoustic guitar 3) you'll probably suggest we need a subwoofer, but we're usually turning the low end down on our PA, so I'm not convinced of that. PA setup options: 1) use channel inserts and buy rackmount compressor units for the four vocal channels. 2) I have a yamaha aw4416 recorder/digital mixer with built in effects including compression on every channel. It's only got eight inputs though, so we'd have to have a submixer (probably my allen and heath zed10 that I bought for recording chores) going into it. Also we'd have to use my mackie amp for the mains (and revert to our old monitor amp which still works). Wattage rating wise it's a little confusing -- the Behr says it's 300 watts @ 8 ohms, the mackie is 140 watts at 8 ohms. BUT the Behr rating is 1% THD, the mackie rating is for 0.01% THD. (A little net research reveals this to be EIA rating vs. FTC rating.) there's really no great way for me to test in advance whether or not we can switch to unpowered mixer + mackie amp. I think a little drop in volume with the mackie might be ok considering we'd be adding compression on the vocals (and maybe the main mix even?) and we'd apparently be lowering our total harmonic distortion (unless we have to turn up all the gains to compensate for lower power output!) NO knee jerk Berhinger bashing please. We've been using this powered mixer for about two years and at least forty gigs.