ashuta

After reading what others have been doing to get better bass response, I realized that folks were either dropping in an elaborate sub / amp setup, cutting into the back deck to build in a box, or trying to find a better 8” free air sub (doesn't exist from what I can tell) to replace the stock one… Then I wondered the following… Why isn’t there a “drop-in” way to seal the stock subwoofer to give it better response? Here is what I am thinking…

Take a foam baffle for an 8” subwoofer...


Make a fiberglass mold of the baffle...


This thought was just off the cuff & I am not sure I have thought of everything... I am posting to see if anyone thinks this is a good idea or how they would do this project. My overall goal is not to alter the car & to not spend a ton of money on bass. This idea should cost less than $50. Lets hear your ideas or changes!

lembowski

iTrader: (1)

good idea! get-r-done

rodneyc77

iTrader: (1)

space is tight in the rear deck... because of the two layers of sheet metal back there... you'll probably have to do some chopping of the lower level sheet metal to get enough clearance for your baffle...

Like lembowski said... get-it-done and let use know how it turns out...

ashuta

Anyone know what the exact clearance is? The baffle is 5" deep... Cutting is not an option (for me). Also, I'm not sure about the cubic volume of an 8" wide x 5" deep cylinder would be? Any thoughts on the calculation? I am guessing it is less than .25 cu vol... Plus, I also don't know if the stock sub will work in an sealed enclosure.

BTW - This thread isn’t intended to just jump in & get it done (although, I might as well). I hoped to find the best & cheapest way to add a bit more oomph to the stock sub (or at least find a better option – aka a low power ~40watt~ / free air sub that can be just dropped in).

Finally, will the polyester fiberglass resin eat through high density foam? Calling out all you fiberglass guys… I never have done any of this before.

ashuta

What no love? Anyone... Anyone... Bueller? Anyone?

lembowski

iTrader: (1)

no answers here. sorry

Kracker

I kinda sealed up my rear deck with dynamat. I plan to buy ($130 - 150) a JL 8W3V2-D4. Wired in parallel is 2 Ohms.. Stock Amp should be okay with that. I just want a little extra bump and not be distorted because its a paper cone...

If you still need specs for the rear deck I have a drawing with approximate dimensions some where...

Kracker

I dont know if I trust it, but my notes say its 3 inches deep... I also have it marked that the space between the seatbelt and inside of the drivers side speaker is 15 inches, and the size front to back is 10 inches.

I dont have the whole size of the rear deck... But this might help you a little.

King of Pain

It sounds like a good idea but a real challenge to get it done right. Almost all subs and other drivers need a specific enclosure volume to make them sound good. Even door speakers rely on the door cavity to produce a certain range of sound correctly. The challenge is to find a sub that can work in a very very small enclosure.

JL Audio makes the 8W1v2 (4 or 8 Ohm). This 8 inch driver has amounting depth of only 3.85 inches and can run a 0.375 cubic foot seal enclosure. It takes about 100 watts to drive it.

That's about as little as you can get and still get an improvement .......MAYBE!!!

BTW The volume of your cylinder is 251 cubic inches or .145 cubic feet

http://www.online-calculators.co.uk/...ndervolume.php


http://mobile.jlaudio.com/products_s...p?series_id=28

Kracker

That sucks... I hope its deeper than 3 inches... There go my plans to install that JL sub. I HATE taking the rear deck off! I hope someone can disprove measurements.

For the record:


8W1v2 - 4 Ohm
Sealed Enclosure .375 cu. ft.
Magnet Diameter - 4.54 in.
Mounting Depth - 3.85 in.

8W3v3 - 4 Ohm
Sealed Enclosure .3 cu. ft.
Magnet Diameter - 4.75 in.
Mounting Depth - 4.62 in.

8W3v2-D4 - Dual 4 Ohm (2 Ohm parallel)
Sealed Enclosure .375 cu. ft.
Magnet Diameter - 5.25 in.
Mounting Depth - 4.31in. (it does have a bump that does make it deeper)