So my outdoor rig is an SVT5 (which is like 1000 watts into 4) and a Mesa PH810 cab. Seems like I used to be able to knock over small kids, plow snow, move furniture, etc. with it. Here lately, it seems like it just doesn't have what it use to. I checked to make sure all 8 speakers are ok, and they seem to be. My question is, is there a chance my amp could be loosing power? Is there any way I can measure the output to detemine if it's putting out what it should be? I understand that volume or "loud" is subjective, but It seems like there should be some way to measure output power.