The 2 metal things are screws with washers on them. The box is sealed with silicone, but the front baffle is just bolted on with foam rubber sealing it. It was only temporary because I was making the fiberglass face for it. Unfortunately It wontbe getting finished because Im driving my bonne now, and the buick is getting scrapped. Ive got a whole bunch of new ideas for the bone though
But as far as tuning goes. You can tune a driver for midbass just like you can any other enclosure. In this case, the sub is getting an even smaller volume, more like .1cuft after the magnet and frame displacement. Therefore the sub has a natural f3 that is pretty high, like I said , it gives up around 40-45 hz, so it has a natural 40hz highpass due to the enclosure, and the sub was running off my sub channel that had a lowpass of 80hz. I believe the lowpass is a 12db/octave filter. Ide have to look up the specs. If I was finishing the project I would have set a 40hz 12db/oct lowpass filter on the 12 inch sub in the trunk to try to limit the overlap of the 12 and 8 playing the same frequencies. even with a small driver like this, you still need a good volume to get good low bass. If I had a better driver I would have build a linkwitz transform circuit and sacrificed the added excursion for a lower Q.
Its put to rest though and Im taking out the 8 inch. Ill find something to use it for. My next project is to fit 5 or 6 6.5 inch subwoofers into the rear deck of my bonne and have them aperiodically damped.
"-@--------@--" 1990 SSE " Black Ice " 220,000+ kms, GX3, sunroof
16" Streetwear Diablo wheels | Blazer Fog Lamps | Silverstar 9005 low beams | Mesh Grille | STB | '94 Top end | Delco Type 2 Ignition | Blue interior LEDs | LED 3rd brake light | Auto-dimming rear view mirror | Pioneer DEH-P7600MP | Rockford 5 1/4 Components and 6x9s
Daily driver : '95 Buick Regal Custom | Blue under dash LEDs | Infinity 5 1/4 components | 8 Inch sub under dash | 12 inch Bazooka sub in trunk | Rockford 4 ch amp | Trunk mounted EQ | Pulsing trunk LEDs