I have a 410 and 210 Seismic Audio cabs. While I have read generally decent things about them, honestly, mine sound like ass. For those unfamiliar with them, they are MDF cabs, no tweeter or dampening, with Chinese drivers. They are extremely boomy, at any volume or EQ. Does anyone have experience with these cabs or know any tricks to improve them ? Add batting ? Change the port size ? EQ suggestions?Set `em by the road ?