|
Ah, BM = Bass Management.
Is that sub level on the receiver or on the sub itself? If it is the receiver, check the level on the sub. It should not need to be that high on the receiver.
With the receiver crossed over at 60Hz, make sure to set the crossover on the sub up as high as you can (140Hz-160Hz) or disable it. Due to your speakers all set to large except for the rear, only LFE and bass from the rears will be produced from the sub. What do you have for speakers? If they are not true full range, you may want to set them to small as well.
You also may want to get an SPL meter and a calibration disc, if you do not already have them. Unless your receiver has an auto set-up feature, you could use that.
Is it movies, music, or both, that you are not getting anything out of the sub? With your set up 2-channel will not use the sub at all. For movies it will depend on how much LFE is on the track.
~Dr. Spike
|