I have 2 audiobahn 8" speakers mounted on my back dash. My Question is to mount them upside down ie. magnet outside of box, cone facing the inside of the box, would I have to change the volume of the box any. I think the current box volume is round' .34 cubes. would doing this affect the sound quality. My reason for this is that the audiobahns are really nice looking subs and i would like show them off. Loudness is not that important as being I have 2 ported 15" solobarics in the trunk.