I used my 410L last night in a medium size club, longish with a wood floor. I set my Eden WT550 with the gain knob at noon, EQ about flat with very little Enhance and the master at 10:00 with the volume on the bass rolled off about a quarter turn. The controls on my MM Sterling were set with just a touch on the bass knob, mids flat and maybe an eighth of a turn on the highs. The tweeter on the Schroeder was at 9:00.
I use a wireless and I was able to walk out of the bar and stand at the door. When I tried this before with a Goliath III I noticed how little actual bass was present in the mix, although the bass was over-powering back at the stage. Poor drummer

Anyway, last night the bass was still present in the mix at the front of the room, all the way back to the corner where we were set up, and the relative loudness (to the drums, vocals and other instruments) was changed very little. Low fundamentals get lost in a mix, so the Schroeder boosts the low mids, which is all that most people hear anyway, especially in a crowded bar with people yelling, cymbals crashing, guitars screaming and everything else. The mids cut through, yet when the end of the night came, we did a request - "Roadhouse Blues" - in which I play a low open E during the first eight bars of the guitar solo. This note had clarity, was pitch-perfect and shook the floor, walls and everybody in the place. It sounds like the fundamental, even if it isn't. The other reason the Schroeder projects so well, is the horn loading of two of the drivers, which helps to focus the sound further out front. The rhythm guitar player set up after I did, as I watched the Mets lose, so he just set up his DR Z about 5 feet in front of my bass rig. This didn't seem to have any effect at all on how the sound of my bass projected.
I have an outdoor gig today, so I'll try to formulate more explanations of the "Schroeder sound" as experienced in an open, less reverberant space and relay them here. So far though, I can't see me wanting to use any of my other speaker cabinets.