help designing subwoofer

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mastarecoil
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help designing subwoofer

Postby mastarecoil » Fri Aug 11, 2006 8:48 pm

Hi,

Making my first attempt here at a home threatre subwoofer.

I have this sub:
http://www.mpyreaudio.com/65x5.htm

and this amp:
http://www.mcminone.com/product.asp?catalog%5Fname=MCMProducts&product%5Fid=50%2D6266A&cookie%5Ftest=1


I tried putting the sub information into WinISD Pro, but it came back with all kinds of errors about calculations not working. Does anyone know another good way to design a subwoofer. I guess what I need to find out is a box size and a port size, correct?

Also, I am shortly (next weekend) moving to a new apartment, and have no lawn any more to work on projects. I could do some building, but it would be dificult, so I think I might look for premade boxes. Anyone have a suggestion?

This will be in a small room at first (13x13), and from there who knows where I will use it.

Any input anyone has would be greatly appreciated.


Thanks
Garrett
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Death By Bass
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Postby Death By Bass » Fri Aug 11, 2006 9:19 pm

wait, thats a 6.5inch woofer?

why?

whats wrong with an 8inch? or 10?

edit: lol, winisd calculates its efficiency to be under 80dB 1w/1m :p

edit edit: if you're set on using this woofer, well, 10 litres, tuned to 30Hz seems alright... lol

thats 0.353cuft, and a port thats 2 inches in diametre, and 25inches long? lol

maybe you should consider a different woofer :p

or else, you could put it in a folded horn, which should raise the woofers efficiency to 100dB or so, and would take up about 100litres, 10 times the space :p lol
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MaGurk
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Postby MaGurk » Fri Aug 11, 2006 9:21 pm

Its a 6.5" that moves alot of air, and doesn't need much of a box.
HexiBase.com/forum/
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Death By Bass
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Postby Death By Bass » Fri Aug 11, 2006 9:26 pm

MaGurk wrote:Its a 6.5" that moves alot of air, and doesn't need much of a box.


and has 80dB efficiency, even according to the manufacturer, and should hit somewhere around 100dBs at full power... :p lol
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mastarecoil
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Postby mastarecoil » Fri Aug 11, 2006 9:27 pm

I am set on this woofer. I won this and am extremly thriled. It was going in my girlfriends car, but it blew its headgaskets, so time to make an HT sub.
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mastarecoil
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Postby mastarecoil » Fri Aug 11, 2006 9:28 pm

Building a folded horn would be pretty neat, especally if it could be a huge box with a tiny sub, I think it would be a neat look. Anyone have any design ideas for a folded horn box for this sub?
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Death By Bass
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Postby Death By Bass » Fri Aug 11, 2006 9:54 pm

you wont be able to see the woofer in a decent horn though......

Image
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mastarecoil
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Postby mastarecoil » Fri Aug 11, 2006 9:59 pm

I am sure I could figure something out with a plexiglass window. Maybe even the entire side (like the one not installed in that picture). Are there programs that can do the calculations on how build one of these?
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Death By Bass
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Postby Death By Bass » Fri Aug 11, 2006 10:00 pm

mastarecoil wrote:I am sure I could figure something out with a plexiglass window. Maybe even the entire side (like the one not installed in that picture). Are there programs that can do the calculations on how build one of these?


yep, its called "hornresp" but good luck with it :p

ya got msn?
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--m--
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Postby --m-- » Fri Aug 11, 2006 11:38 pm

Just give him the enclosure design for the two 5WRMS 4" speakers that you got to hit 120db with :p.
Once you've hit rock bottom there's only one way to go....sideways

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