lets say u put a amp which birhsheet says 1700 watts rms on some 15's then u take it off and upgrade to a amp which says 1890 watts rms n the same 15's will u notice any difference?
I used to have 4 12's on 2 ma audio hk-1998 which was 1200w rms @ 1 ohm, 1 time I only had 2 12's on 1 ma audio it did bang now when I put the other 2 on the other ma audio amp which I had 4 12's bangin on 2 same model amps the 4 12's still sounded like 2 12's I thought it was suppose to be double what the 2 12's offered
to notice a difference, you'd need to increase about 3dB, which would be double the power. to get double the volume, to your ears, or 6 to 10dB, you'd need to increase power by six to ten times.