The volume on the sub is set very very low for testing...and I gradually increase it. The video shakes as soon as there is the slightest output from the sub. The AVR 7300 has the sub set down to -10db..I have adjusted it all the way to 0 to see if it would help.
The DVD players are in a cabinet on the floor about 6 feet away...maybe a little more.
I checked the projector by switching the video input to another mode to see if the projection was jittering...and 0... THE Dvd on the other hand would shake rattle and roll..
