Hello everyone,
I installed a 10" Blaupunkt subwoofer in the passenger footwell of my 2005 Red Acura NSX http://www.nsxprime.com/forums/showthread.php?t=64800. However, because I used an free air or infinite baffle(IB) setup my bass sound was not optimal. I went to the installer determined to have a fiberglass enclosure around the subwoofer. However, on examination the woofer was already touching the power steering unit at one point. If I added fiberglass behind the woofer it would then intrude into the footwell space.
The only solution I could come up with to improve the free air setup was to create a 2" wide skirt surrounding the wooden mounting plate made of 1/8" thick ABS plastic. Here are pictures of the modification. This would hopefully help isolate the rear sound wave from the front decreasing cancellation. It's almost a pseudo-enclosure.
I believe I noticed a considerable improvement in the quality of the bass with lower frequencies audible at higher volumes compared to the face plate without the ABS skirt.
Here are pictures of the procedure. These pictures show the 1/8" thick ABS strip being heated up to soften it allowing it to follow the contours of the wooden face plate which has the shape of the original metal plate covering the factory Bose subwoofer. After the ABS is contoured it is stapled to the wood plate to secure it. Once the ABS cools it becomes a rigid plastic skirt for the wooden plate.
I installed a 10" Blaupunkt subwoofer in the passenger footwell of my 2005 Red Acura NSX http://www.nsxprime.com/forums/showthread.php?t=64800. However, because I used an free air or infinite baffle(IB) setup my bass sound was not optimal. I went to the installer determined to have a fiberglass enclosure around the subwoofer. However, on examination the woofer was already touching the power steering unit at one point. If I added fiberglass behind the woofer it would then intrude into the footwell space.
The only solution I could come up with to improve the free air setup was to create a 2" wide skirt surrounding the wooden mounting plate made of 1/8" thick ABS plastic. Here are pictures of the modification. This would hopefully help isolate the rear sound wave from the front decreasing cancellation. It's almost a pseudo-enclosure.
I believe I noticed a considerable improvement in the quality of the bass with lower frequencies audible at higher volumes compared to the face plate without the ABS skirt.
Here are pictures of the procedure. These pictures show the 1/8" thick ABS strip being heated up to soften it allowing it to follow the contours of the wooden face plate which has the shape of the original metal plate covering the factory Bose subwoofer. After the ABS is contoured it is stapled to the wood plate to secure it. Once the ABS cools it becomes a rigid plastic skirt for the wooden plate.