DiyMobileAudio.com Car Stereo Forum banner
1 - 16 of 16 Posts

·
Registered
Joined
·
8 Posts
Discussion Starter · #1 ·
I have a small, deep space I'd like to put a JL W7 subwoofer in. They recommend .875 cubic feet, I have one-half that. What would be the effect on the bass if I did it anyway?
 

·
Registered
Joined
·
12,569 Posts
It would play bass better [ integration to components would be good ], subbass would be virtually non-existant....Oh, and you could dump a ****load of power to it {braggin rights};)
 

·
Registered
Joined
·
726 Posts
Or you can download WinISD pro (http://www.linearteam.dk/default.aspx?download=winisdpro) and model it. Of course putting it in the car with throw off the response quite a bit, but at least you can find out what actually happens in general terms as you change the box size...
 

·
Registered
Joined
·
48 Posts
How about you get a subwoofer that actually WORKS WELL in the space you have instead of trying to cram 10lbs of sh!t into a 5LB bag.
 

·
Registered
Joined
·
633 Posts
It will work indeed, but not play as low as you'd like...well i assume as low as you'd like. Only one way to find out right???
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #6 ·
I guess that's my question, would the JL W1 8" work better (the space is correct for that), or would a better sub (JL W7 8") sound better in half the recommended space?

On the other hand, I have a penchant for overstuffing things.
 

·
Registered
Joined
·
7,408 Posts
I guess that's my question, would the JL W1 8" work better (the space is correct for that), or would a better sub (JL W7 8") sound better in half the recommended space?

On the other hand, I have a penchant for overstuffing things.
you would be far better off, putting a sub in the proper encloser than not...

The w7 will be over damped, so as everyone stated, it won't extend very low, it may intigrate with the mids real nice, mainly because you've over-damped it so much, it's not a sub anymore, but more of a mid-bass...

Stuffing the box with polyfill only gets you so far, till the law of diminishing returns comes into effect..
 

·
Registered
Joined
·
6,393 Posts
Stuffing gets you about 10-15% more, not that much. Depending on the install you can invert, not much else you can do. I would get a small box sub, but then I don't remember ever liking a recommended size box I always go larger.
 

·
Registered
Joined
·
6,393 Posts
Actually, according to an article by Tom Nousaine you can get roughly 35% from proper stuffing.
He must be a lucky guy, I've stuffed a lot of them and it never changed them that much. I hate small box sound so I have tried, my problem is the recommended size is usually too small for me too.
 

·
Registered
Joined
·
8,988 Posts
He measured resonance with different levels of polyfill. it was eye-opening to say the least.

Search for a "polyfill" thread started by me and you'll find the links.
 

·
Registered
Joined
·
6,393 Posts
He measured resonance with different levels of polyfill. it was eye-opening to say the least.

Search for a "polyfill" thread started by me and you'll find the links.
Found it:
Polyfill Chart
Sub Box Polyester Fiberfill

They don't say anything about db however, I thought you lost some output with a lot of stuffing. A third larger, hmmm, I don't recall getting that much out of one but could be. In my experience it seemed to take out the higher bass as opposed to increasing sub bass. The stuffing takes heat because it is adsorbing the energy, meaning energy is lost from the sub. Not like anyone cares about that in these days of huge amps.
 

·
Registered
Joined
·
8,988 Posts
It's not taking anything from the sub. The sound projected out is in no way affected by the polyfill in the box. The polyfill vibrates and heats up. Hot air is less dense than colder air so the sub "sees" a larger box.
 
1 - 16 of 16 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top