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  #11  
Old 10-20-2016, 10:41 PM
white59rt white59rt is offline
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Yes the area is hollow underneath. I used some batting that laid pretty flat and kinda cut it to fit. It came out to about 1.5 liters of displacement. So we are looking at approximately 10.5 liters or .3709 cu ft. It may be closer to .400 as I doubt I filled all the nooks and crannies.

I feel like I am as geeked out over a speaker box as I can get at this point. I am curious as to the exact number but .3709-.400 is the range I believe.

Good catch gents! And thanks for wasting another hour of my day !!!!!

*EDIT* I correct my math.

Todd

Last edited by white59rt; 10-20-2016 at 11:02 PM. Reason: Math Correction
  #12  
Old 10-21-2016, 09:53 AM
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So are you compensating for the volume of the sub then, or not?

If you place the sub into that box, water will be displaced...hence, smaller box/volume.
The manufacture should have specs on the volume displaced by the driver itself.
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  #13  
Old 10-21-2016, 10:06 AM
white59rt white59rt is offline
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Just the box volume with no subwoofer. Each sub is a tad different but I wanted to see what the actual volume of the box was. It turns out I bought a sub that requires .5 cu ft of air space so we will see how it goes, its not ideal. Some polyfill may help but I really should have gone with an alpine type R, its airspace requirements fit this box PERFECTLY. And to my understand most manufacturers nowadays give you the box requirements, they already take into account the displacement of the driver, is that info off?
  #14  
Old 10-21-2016, 11:00 AM
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Food for thought. It's been forever, but someone on here at one point was making a spacer, that shimmed the speaker out a hair(I can't remember if it was 3/8" or 1/2" or something like that). That would gain you a little more air space.
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  #15  
Old 10-21-2016, 11:20 AM
white59rt white59rt is offline
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Quote:
Originally Posted by BK39 View Post
Food for thought. It's been forever, but someone on here at one point was making a spacer, that shimmed the speaker out a hair(I can't remember if it was 3/8" or 1/2" or something like that). That would gain you a little more air space.
Yes thats the whole reason I started doing this project is I read Jdgleason's post. He had a vendor forum at one time but its no longer active, however the posts are viewable.

The spacer was made by fleece performance. I messaged jdgleason and never got a reply, not sure if he still even gets on here.

I will use MDF spacer ring if I need to for clearance purposes, otherwise I am just gonna roll with it and see how it sounds.

Todd
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Old 01-12-2017, 10:56 AM
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Quote:
Originally Posted by white59rt View Post
Yes thats the whole reason I started doing this project is I read Jdgleason's post. He had a vendor forum at one time but its no longer active, however the posts are viewable.

The spacer was made by fleece performance. I messaged jdgleason and never got a reply, not sure if he still even gets on here.

I will use MDF spacer ring if I need to for clearance purposes, otherwise I am just gonna roll with it and see how it sounds.

Todd
just curious how this turned out? any update?
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