Ya know, it's funny. The first gig I did with the SCR was a notoriously finicky room when it came to taming the boominess. Small-ish club with glass windows on two full sides and all hard wood floors. I usually have to resort to some pretty drastic cutting at the amp end with my usual rig which is pretty mid-centric. Upping the low mids and rolling back bass helped, but it came at the expense of having an overly nasal quality that drove me nuts. I do go through the PA there, but space restrictions mean we bring along the lesser of two, so I have to keep my floor monitors to light duty. What I did against (what I thought was) my better judgement was kept mids just below noon on the SCR, upped the bass just above noon, and hit the Lo switch, just to see. It cleaned everything up nicely and it was one of those "duh" moments. I spent so much time trying to dial in mids and cutting lows and treble to make the room work that I didn't stop to think that what that room needed was pretty much the opposite of how I'd been approaching it. The SCR Lo switch is going to be my magic button for that particular venue. It's also an easy transition for the few slap tunes we do where I just have to hit the Hi button to bring in the appropriate hi mids for that application.