Hi fellow ax3 owners. I've been playing around with the various processing modes whilst listening to stereo music sources and have noticed that no matter what sound field is choosen or how the various eq parameters (x-over, level etc) are adjusted nothing is sent to the sub. I listen to a lot of dance music and I enjoyed using the sub when listening to dance music on my old Sony 930 amp. The sub channel works fine during calibration tests and during true multi channel films... Am i missing some trick here?!