Originally Posted By: SRoode
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.


An update
I woke up this morning at 0300 and proceeded to switch my amp out. Did a quick recalibrations and put a test disk in the OPPO (UB-571 Depth charge scene). The way I have my crossovers set up is 40 for all 4 of my M80's and 80 for the VP150. Steve is right in saying that the rumbing effect is much greater with the new amp as compared to the old. The gain knob on the old is set about 55% and on the new is 65%. which is opposite to Steve probably due to room layout and sub placement. I have errands to do the rest of the day so tomorrow will give me time to further test this new amp out.