Sorry should have been more detailed the subs crossover is switched on the back of the sub to off, so bass management is done in receiver. I went ahead and set the M2's to 80hrz. What bothers me is the other day I rewatched National Treasure2 and at the beginning with the disney castle and the fireworks going off, with my old bostons it was very forceful. The fire works would make a loud POP rumble at the same time. The rumble is still there but the forcefulness is gone.