Sure it will affect those, 6-10dB off from the bass/mids will do that. But how much it will effect those things remains to be heard. The waterfall plot they have posted is just a thumbnail with no link the big image, which I'd be curious to see. The back grille seems to be easy enough to unscrew and mess with damping, which will limit bass extension, but who the heck needs bass extension to 5Hz? And agreed about number 2).