I've been using my Delta15lfa loaded T48 for almost a year, using an amp from a powered sub

I always kept a close eye on the levels, as well as checked the max output. It sounded fine, waaaay louder than the sub I was using. I finally popped the amp, so I picked up an crown xTI2000 last week. I ran sound for a local radio station hip hop dj in a large building. Seriously underpowered, but I was the best they could find without spending big bucks. The dj kept clipping his mixer, and I was up and down on the mains all night. Other than the distortion from clipping, it sounded ok.
Last night I played my residency, a 4 hour set. The dj booth is L shaped, and the only place I can put the T48, kinda creates a bass trap right in the booth. The T48 has always been loud at the booth, but DAYUM... I set the xover with a lp@110hz, 48db/octave; hp@45hz, 24db/octave, both LR. At times I had a hard time breathing, felt like the air was being sucked out of my chest. Even with the lower output of the delta15lfa, it was amazing. The dancefloor had a nice, even coverage of bass. Now for the 3015lf and start shaking the ceiling tiles out.