The speakers(4x10) are farting out at higher volumes and was wondering if I add air holes(be it ports or vents), would it lessen that effect? I don't really have room for traditional ports or a bottom vent in the front baffle, but I do have room to make a few 2"-3" holes... Yes, I'm overpowering the cab- but I need clean volume out of this cabinet. No- I can't afford a different one or other speakers. Thanks!