Will someone please explain crossover frequency to me. Here are my current settings after doing an auto calibration: Front R/L = 40Hz, Center = 90Hz, Surrounds = 150Hz, Sub = 80Hz but the manual setting on the sub is 150Hz.

I have read that the manual setting on the sub (EP800) should be set to 150 as this takes the the manual settings out and the receiver settings take over. In my case 80Hz. True?

I have also read that every speaker should be set to 80Hz. True?

I'm confused how crossover frequency works in a practical way. The way I understand it is that if the sub is set to 80 then it will play all frequencies 80 and below but what about all the other speakers? I guess they play all frequencies above there current settings but not below?

Should I leave all my current settings from my auto calibration or change all speakers to 80Hz?

Thanks!

Samsung 65" 3D LCD TV, Samsung 3D Blu-Ray Disc Player, Denon AVR 3311CI, EP800, M80's, VP150, 4QS8's