I’m trying out an SVS with my L100’s to see what it does for the frequencies below 40k only. I don’t want it interfering with anything above that and possibly altering the sound. So I have it hooked up the the “pre out” on my NAD, which has a filter at 40,60,80 and 100Hz. I have it set up at 40. Maybe I’m not quite understanding this, but shouldn’t there be no sound or movement from the SVS if there is a cutoff at 40? When I turn the volume up, it’s clearly putting out sound. The way I figure it, I should be able to turn the volume all the way up, and as long as there is no signal below 40HZ, it should still be quiet. Is this correct.