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Being an audio enthusiast...I knew from day one that the stock system had to go...quick
I like clean music...but still get the itch for some big deep bass. The Honda sub or the Bass Shakers were not going to work for me. After measuring and playing around with ideas, I knew that the only way I was going to get a decent size sub and still maintain some trunk space was to build a custom enclosure from fiberglass that molds to the tool area. I had never worked with fiberglass before but I did it pretty easily after some trial and error and a big mess. I ended up with a Blaupunkt 15" overdrive dual voice coil Sub pushing 500W RMS at 2 ohms.
Buy some thick fiberglass sheets and lots of resin with a couple of disposable brushes. I chose to leave the carpet in the well in case I need to bring it back to stock. Completely cover the area with aluminum foil so the fiberglass won't stick. Mix resin and completely soak both sides of fiberglass sheet with resin. Lay a complete layer...wait 30 min.. and repeat...about 3 more times. 4 sheets thick is pretty strong when dry. Only mix enough resin to do one layer at a time because it drys fast. I used a wooden frame on top for more airspace and to connect the fiberglass to the box top below. Lay it down before you begin and lay fiberglass over it. Make sure you wear gloves and a mask. Here is a link to a guy who has pics of the box he made for his stang.
Next, I cut the top of the future box out of 3/4 in birch HD fiberboard. The top and frame have lip around the sides, and sit flush on the trunk. I Then used the speaker template to cut the hole for the woofer and the speaker contacts. I layed this piece on top of the frame after sanding the fiberglass on the frame to make it as flush as possible. Then connect both with some screws and nails. I used minimally expanding Great Stuff from the hardware store to seal the top and make it airtight. Cut some charcoal gray carpet and staple it underneath the lip, and cut out your holes with a razor blade or scissors. Fill the box with sound damping filler( This slows down the sound waves and theoretically adds up to to 20% more airspace) Connnect your terminals and sub. Screw it down and your set. You can order some carpet, filler, and terminals from http://www.crutchfield.com
Total cost about $50 - $80 plus labor. Took me several hours to complete. Make sure you don't make your frame too tall or you won't be able to get the box out of the trunk. Check your sub for its recommended box size first. My box is about 1 - 1.2 Cu. ft., that's why I went with the Blaupunkt because it doesn't need a lot of airspace.
WOW.. a 15"!!! nice job.. does your trunk rattle? i have the Inf. Perfect 12" and i still get rattle after dynomating the trunk lid.. i would love to hear what your car sounds like
Originally posted by BigRedDog WOW.. a 15"!!! nice job.. does your trunk rattle? i have the Inf. Perfect 12" and i still get rattle after dynomating the trunk lid.. i would love to hear what your car sounds like
The system actually sounds very clean...and gets good bass from the sub. I get a little rattle only at high volume...but I haven't dynomatted the trunk lid yet. This is only noticeable when top is up. Don't hear anything when top down.
Phase II of my system includes installing some rear panel speakers, run fom the head unit....2 bass shaker pros, one under each seat, run from an additional amp...and dynomatting the trunk. This will hopefully fill in the rear channels, and add some punch and seat vibration to the low end so I can turn down the volume of the sub at normal listening levels and avoid any kind of rattle. But, I always have the option to crank the bass if I want!
The system actually sounds very clean...and gets good bass from the sub. I get a little rattle only at high volume...but I haven't dynomatted the trunk lid yet. This is only noticeable when top is up. Don't hear anything when top down.
I went to Circuit City and bought a QLogic box. Got a JL Audio 10w6 and put it in the trunk. I wanted something simple and easy to remove (detach 2 wires and out goes the box) in case I needed the trunk space for anything.
The box was around $50 and the sub was free from my buddy so it was also cost-efficient as well.
I removed the plastic trunk well to let the bass port into the cabin. Sounds great!
I've got a pair of 12's and I'm debating on how (or if) to mount them in the trunk. Do you think that a pair of 12's would work in the same box that has the 15?
