Case of the dissapearing Bass

Wrong position for the speakers and/or the listener.

Kr4 is right. You and/or your speakers are now in a null point in the room. It will be tedious, but you have to move yourself and/or the speakers in small increments until you determine you are out of the null position. Before you moved them, you were in a "hot spot" where the bass was overwhelming. It's all trial and error.

Good luck.

Shakey

You've a "bass suck".. and it's tricky to find the bass is some rooms place the loudspeakers in the corners 6" away from the wall toe-in to the listening position. The 802 do have bass slam!

Q

Your comments about the "nice bass slam" and the woofers "popping away like mad" make me think that you may have overdriven, and blown your speakers.

yeah speaker performance just does not disappear. The 802 d's obviously have enough performance specifications to provide a good solid bass floor since I have the lower sibling, the 804 d's which supply more than enough bass for my somewhat small room. One thing, make sure you connected your speakers in phase. I just re hooked my speakers up out of phase by accident and found that you lose all focus and tonality. And yes, indeed trial and error. Speaker positioning and also are the speakers pointing forward at an upward angle? Not only do you lose some focus the highs can be affected by this especially if you are at a somewhat close proximation to the speakers. Were your speakers sitting atop a wood floor as opposed to much more solid concrete floor? Look at the whole listening environment and try to pinpoint what might affect the overall sonics of the room.