I have 2 Kicker CVR12s and a bandpass box. They can't go into the bandpass box unless I want to burn the coils in about 30 days b/c of the airspace the CVRs need. So, can I invert the subs in this bandpass box and have them work properly with the right amount of airspace? Does the airspace problem deal with just the back of the sub or the front also?