I use an Eden DC-210 "Metro" for gigging. The last time I played out with a "loud" drummer, I thought I noticed I was losing headroom on the final amp end of things. I notice very little difference in gain (output) on the "master" level control from like 1:00 position to full bore. I called tech support and was told I most likely didn't have a problem. I did check for damaged cables, dirty pots, etc. It may be that I'm going a little deaf and it's not my amp!