Matt,
How many QRX/Srx boxes were you utilizing. In either case as the owner of a QRX212/218 system your report is encouraging.
I am running 1 QRx212 over 2 SRX718s per side. I don’t have a problem throwing my rig up in front of 350 people; it’ll tickle the limiters at a rock show with the snare’s snap. I have ran a couple shows with 2 QRx212 per side; mainly 500 person rock shows.
If I was to do that GoGo show again, I would have doubled the rig… but there was a miscommunication on room size and such. But having the Itech amps probably saved me from blowing anything up.
The Cobra rig that I have used a few times, at the end of event I always think that something is off with the rig. It sounds like there is a phasing issue amongst the stack. Everything is set-up using Factory DSP Presets.