I can tell you that it certainly "feels" different. There is noticeably much more rumble from the new amp. I have the new amp at only 50% gain and the old at 90% gain. The new amped speaker drivers have the same throw as the old with these settings, but the rumble and air pressure sensations in the room is much greater.

LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7