I'd like to make a custom ported box for two RE8s. This will be a fiberglass enclosure that will fit over the rear wheel hub on my Saturn Vue. Since it will be an odd shape I plan to overshoot 1cuft and then add bracing to get exactly the 1 cube. Now, I would like to tune it to 30Hz and came up with a port that is 2" dia. and is effectively 7.93"long, therefore physically 6.93" long.
Please tell me if I've done this right, this will be my first ported enclosure attempt as well as my first fiberglassing attempt. Also, my plan was to have the two subs facing across the vehicle with the port facing the front of the vehicle. Would this be a good setup?
And....do I need a subsonic filter if I tune this to 30Hz?