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mega fatty
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6,008 Posts
Discussion Starter #1
first off dont wine about the circles im new to google sketch up and have no idea how to make them the same:angry5:




i think im going to do a rear window blowthrough in a 96 ram 1500 port will be 40"x16" and 7"ish deep for the 45hz tuning
subs will be polk dxi 12d4's on a d9 wired to .66
i am mainly building this to eventually swap to sa12's and probably 3 d9's or just more power in time:thumbsup:

any idea's or opinions on the box would be very appreciated
and if you cant see it top is 30cf tuned to 45hz and bottom is 15cf sealed
 

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mega fatty
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6,008 Posts
Discussion Starter #2
anyone have any idea's on if this SHOULD work good or not?
the ported chamber just seems big and i was going to make it 35cf and 18 on the sealed
 

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Administrator
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31,258 Posts
your port is too large. no. it won't yield a gain. There is no solution for that because once you make it small enough to load the chamber, it's too small for the vent velocity. {your box is long an skinny}

yes it will sound good. sealed boxes almost always do.
they also have better cone control.


you'd be better off with less subs.
 

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Registered
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400 Posts
Offset 6 a side also I would tune lower and smaller sealed side.
 

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Mr. Low End Monster
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3,512 Posts
make the wall shapped like this V with 6 subs on each side of the V with a loading wall in front
 

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mega fatty
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6,008 Posts
Discussion Starter #6
how about a diamond how would i go about tuning that?
 

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Mr. Low End Monster
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you would be better off doing the V or clam-shell method.
 

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mega fatty
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Discussion Starter #8
If I measured right it's only 30" tall and 50" wide so after 2" walls that doesn't leave alot of room for a v
 

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Registered
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Stack them vertical. I.e. like assmans sealed van. Not like hanks mojo wall.
 

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Registered
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580 Posts
first off dont wine about the circles im new to google sketch up and have no idea how to make them the same:angry5:




i think im going to do a rear window blowthrough in a 96 ram 1500 port will be 40"x16" and 7"ish deep for the 45hz tuning
subs will be polk dxi 12d4's on a d9 wired to .66
i am mainly building this to eventually swap to sa12's and probably 3 d9's or just more power in time:thumbsup:

Any idea's or opinions on the box would be very appreciated
and if you cant see it top is 30cf tuned to 45hz and bottom is 15cf sealed
shrink ur sealed chamber to .7 per sub (8.4cuft total sealed)..and make ur ported chamber 36.6 cubes
80
 

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mega fatty
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6,008 Posts
Discussion Starter #11
Think that would help with the loading issue sonic thought it would have?
 

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mega fatty
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6,008 Posts
Discussion Starter #12
ima bump this up any help would be well helpfull :)
 

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mega fatty
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6,008 Posts
Discussion Starter #13


ok so i reworked it and how does this one look
its going for the 36.6 and 8.2 80 suggested should be tuned right about 45hz with 600 sq" of port brings it right about to 16.2/cf
 

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mega fatty
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6,008 Posts
Discussion Starter #14
Ima bump this up any help
 
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