Well the cheap ass waffle grilles broke yesterday. I may be hearing things but I could swear my subs hit harder and moved more with the grills off.
In light of this, being I need them protected, I'm getting the 4 bar style grilles from GS audio in the matte black finish as the box and speakers are black.
This will provide protection from like grocery bags and stuff like my tool box when I have it in the trunk but won't impede on the movement of the subs and not block or distort the sound.