Your right Adrian, when playing movies or Tv the AVR is set to 80Hz across the board.

But for music, wow. it changed everything. It's working for me right now.

PS, i find that I need more 600's to tame the room as they say. I was considering to buy 2 more. one behind the TV, which by the way seems to be the best place for it and the other 2 to be placed where the Subwoofer crawl sounds best.

M80-QS8-VP150-EP600-A1400-8
STR-DA5300ES BDPS5000ES.

Mark