Well many people were saying this amp, would not put out near rated. My buddy had a Saz-1500, which is under rated (usually around 1700-1900rms), and it sounds just as loud as that, I don't know anyone with a Saz2000, Dc 2k, AQ 2200, etc.
But once again I do not have anything to clamp it, so I am not trying to make any irrational assumptions, I am basing this strictly off what I can hear with my ear.