Contour Enthusiasts Group Archives Forums Modifications Audio Rear Deck free-air Sub question.

yeah I did for the back of a blown focal component i had just to see how to do it..

all I did was find a cardboard tube big enough to fit the area..then I fiberglassed it and then flared/spread or whatever you want to call it the edges enough with glass to screwn through it.

looked good..how effective was it? no idea speaker was blown..ill let you know when I do the same for my orion components.