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Old 13th July 2004, 06:59 PM   #1
wingman is offline wingman  Denmark
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Default Monacor sph-380tc music and ht sub

Hi
if you have the time pleas look at my design

T/s

Click the image to open in full size.

the room is 6x20x3,5 meter

thanks
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Old 13th July 2004, 07:01 PM   #2
wingman is offline wingman  Denmark
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Default transfer function magnitude

transfer function magnitude
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Old 13th July 2004, 07:02 PM   #3
wingman is offline wingman  Denmark
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Old 15th July 2004, 05:33 AM   #4
wingman is offline wingman  Denmark
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Default Input

Pleas give some input
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Old 29th July 2004, 02:04 AM   #5
wingman is offline wingman  Denmark
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btw. the cabinet is 200L
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Old 29th July 2004, 05:52 PM   #6
GM is offline GM  United States
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>Can some body help me make a Overdamped cabinet for this woofer : Monacor sph-380tc
====
An 'Adire' alignment for this driver using published specs appears to be 71.65L/17Hz, but unless you have a lot of room and/or corner loaded gain or live in an apartmemt or condo, I do not believe you will find it adequate for HT, though should be fine for music with some EQ shaping to flatten in-room response.

WRT your extended Fb design, it is OK as is, but considering the intended app and the driver's specs (if reasonably accurate), I would put it in a Vb = Vas/Fb = (0.707*Fs) ML-TL, with the VCs wired in parallel to keep Le low.

Suggested ML-TL:

L = 62"

width/depth (CSA) = 270.6"^2

driver down from top 24.63"

5" diameter x 12" long vent near/at the bottom

0.2-0.4lbs/ft^3 stuffing density

GM
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Old 29th July 2004, 07:10 PM   #7
wingman is offline wingman  Denmark
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Quote:
Originally posted by GM
>Can some body help me make a Overdamped cabinet for this woofer : Monacor sph-380tc
====
An 'Adire' alignment for this driver using published specs appears to be 71.65L/17Hz, but unless you have a lot of room and/or corner loaded gain or live in an apartmemt or condo, I do not believe you will find it adequate for HT, though should be fine for music with some EQ shaping to flatten in-room response.

WRT your extended Fb design, it is OK as is, but considering the intended app and the driver's specs (if reasonably accurate), I would put it in a Vb = Vas/Fb = (0.707*Fs) ML-TL, with the VCs wired in parallel to keep Le low.

Suggested ML-TL:

L = 62"

width/depth (CSA) = 270.6"^2

driver down from top 24.63"

5" diameter x 12" long vent near/at the bottom

0.2-0.4lbs/ft^3 stuffing density

GM
can you spell it out for me ?

My english is not as good as yours


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Old 30th July 2004, 05:25 PM   #8
GM is offline GM  United States
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You sure had me fooled! Since at a glance I do not see how to explain it better, I am not sure what is unclear, so please ask specific questions.

GM
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Old 2nd August 2004, 12:18 AM   #9
wingman is offline wingman  Denmark
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Quote:
Originally posted by GM
You sure had me fooled! Since at a glance I do not see how to explain it better, I am not sure what is unclear, so please ask specific questions.

GM
Can you make me a drawing ?

I think i get what you meen, but i´m not sure.





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Old 2nd August 2004, 02:37 AM   #10
GM is offline GM  United States
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Sorry, I do not do drawings anymore, typing a response is hard enough, and to think I started my career as an achitectural, electrical draftsman and topography map maker.

I have accumulated a few CAD programs, but have not yet got around to learning how to use any of them. Anyway, it will look similar to this except with different dimensions and will require some bracing: http://www.geocities.com/rbrines1/im...LTL_Simple.jpg

GM
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