Yeh, also I do not have a Sub "yet" amd thinking of the EP500 or 600 although I am really undecided. I want the 600, but it is more than a "I want" than a "I need".
My room is 23 x 13.5 and 8' ceilings. I am trying to decide if I should go with one EP600 vertical in front or two EP 500's left and right would be better.

But for now the volume is loud enough any louder and I think it would do damage to the speaker woofers anyways cause they are really moving