Nando, No kidding, that was during one of my monthly mini-concerts. we have a few friends and work buds over and try to emulate a concert. Sometimes we succeed. It was VERY loud. That particular night after that shot, we shut down, tri-amped the K-horns thru the D-23 with a Spec2, a PL 400 and a Kenwood KA-5002. The CV-D-9's were powered by a PL 700B, and the 2 pair of Heresies by a pair of PL 400's. That was a lot of SPL for a room 14 X 24.