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nuboot
12-28-2009, 03:56 AM
well heres my first ever design using sketch up each of the sides are 26h x 15w x 45d for 8.3 cubes



and the opening area will act as the ported area and the measurement to the area is 26h x 25x 45d so iits about 650 square inches of port area and tuned to around 43 hz



so does that look and sound right



hopefully this box hit the lows do a possible hair trick and still put up decent numbers





http://i128.photobucket.com/albums/p179/nuboot69/1610sfirstsketch.jpg

nuboot
12-28-2009, 05:00 AM
ok here it is with the loading wall



http://i128.photobucket.com/albums/p179/nuboot69/1610sfirstsketch-1.jpg

Mr. Slate
12-28-2009, 09:07 AM
In what kind of vehicle?

80INCHES
12-28-2009, 12:17 PM
clam it so the pressure will go foward instead of sitting in the back of the box

80

Louisiana_CRX
12-28-2009, 12:19 PM
clam it so the pressure will go foward instead of sitting in the back of the box

80

x2

mlstrass
12-28-2009, 12:24 PM
how did you determine it was tuned to 43Hz?

PioneerSPL1990
12-28-2009, 12:26 PM
clam it so the pressure will go foward instead of sitting in the back of the box

80



op hes saying angle so the back comes to a "V".

then try to figure tuning. glwt

psychoacoustics
12-28-2009, 02:43 PM
thats a 4th order bp have you plotted it in a program ?

a bp has a tuning range or bandwidth like 30 -55hz not a single number like a ported box

nuboot
12-28-2009, 03:56 PM
help plz i thoought i was doing something lol guess im not thanks for all the input

psychoacoustics
12-28-2009, 04:17 PM
a 4th order bp is one side sealed one side vented

http://www.diysubwoofers.org/bnd/4thorder.htm


the sealed are behind the woofer on the right and left are the sealed section and the long "tunnel" is a port 26"x25" right being 45 "long that is the vented side

toss the t/s parameters in winisd or a sub program and see i bet its tuned really low like 15-30hz thats just a guess though

murderedtahoe
12-28-2009, 04:28 PM
do an ported clamshell tuned around 28hz that would be more than what you are looking for!

nuboot
12-28-2009, 04:29 PM
a 4th order bp is one side sealed one side vented

http://www.diysubwoofers.org/bnd/4thorder.htm


the sealed are behind the woofer on the right and left are the sealed section and the long "tunnel" is a port 26"x25" right being 45 "long that is the vented side

toss the t/s parameters in winisd or a sub program and see i bet its tuned really low like 15-30hz thats just a guess though

the two boxes 1 on the left 1 on the right they are sealed and the tunnel part with the loading wall is supposed to be the ported area. i guess thats what u just said. im confused now lol

nuboot
12-28-2009, 04:34 PM
help?

psychoacoustics
12-28-2009, 04:38 PM
yes sorry thats what i meant

the sides are sealed boxes with 8 woofers each?

and the tunnel is a ported chamber

nuboot
12-28-2009, 04:39 PM
thats what i was going for

Blue Fury
12-28-2009, 04:41 PM
The top row.. if its not a flush mount double baffle, you give 0 room to mount the mount any sub. Move it down

z0n3d0u7
12-28-2009, 04:50 PM
You should probably read up on Bandpasses before attempting to design one. Im sure 80 has some nice link's to read. Sounds like you got the "basics" down, However it needs a bit of work.

Like 80 said, Make the back narrower then the front of the opening, So the subs arnt facing eachother / loading wall parralell. That will cause Cancelation, And cause soundwaves to get stuck in the back of the box. A simple 45 on each side of the loading wall may correct this, However im not by any means an expert.

And like someone else stated, Your port will not be tuned to 1 freq like a standard ported enclosure.. More like a freq Range [Ex 34-55hz.. Again im no expert.]

You maybe better off paying someone for a Design then building it yourself. Id definantly go over any design with 80 Inches before cutting any MDF.

Mr. Slate
12-28-2009, 10:24 PM
Id definantly go over any design with 80 Inches before cutting any MDF.

This 80 inches, he builds bandpass walls?

nuboot
12-28-2009, 11:50 PM
so i took my old box with 3 15s out and finally got time to take some measurements



my intentions if i was to do a 4th order my sealed box would measure up to

45.5w x 33h x 24d which comes up to 18cubes



and for the ported area can be as big as 50w x 38h x 24d 23cubes so thats the space i have all options are available im looking to use alot of subs



so tell me what u got

rmzsuzuki89
12-29-2009, 12:04 AM
so i took my old box with 3 15s out and finally got time to take some measurements



my intentions if i was to do a 4th order my sealed box would measure up to

45.5w x 33h x 24d which comes up to 18cubes



and for the ported area can be as big as 50w x 38h x 24d 23cubes so thats the space i have all options are available im looking to use alot of subs



so tell me what u got

That's a really big sealed chamber for 16 10"s imo.

iamamp3pimp
12-29-2009, 12:11 AM
x2

nuboot
12-29-2009, 12:12 AM
those are the max measurements for how big the smallest area and the largest areas are