The WIBAQ: TABAQ Design with Betsy K - Page 3 - diyAudio
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Old 8th January 2013, 11:47 PM   #21
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Location: Western Massachusetts
Thanks for the cutting dimensions. When I get home I will go onto sketchup and verify the dimensions. I'm away from home now. I also have a wood shop at my disposal (with a cnc machine) incase Home Depot/lowes gives me trouble. I also know people at home depot, so I could always make sure they are there when I go.
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Old 9th January 2013, 01:22 AM   #22
glt is offline glt  United States
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Quote:
Originally Posted by RonVinyl View Post
His dimensions were all internal dimensions since the plywood size is nominal. I will be using 3/4". Here are the dimensions for each piece that I came up with. Do they match up with your cuts glt?

Front: 11" x 43 3/8"
Back: 11" x 46 1/2"
Side: 17 3/4" x 46 1/2"
Top: 11" x 16 1/4"
Bottom: 11" x 17"
Baffle: 11" x 3 1/4"
Front is 44 1/8 as drawn because it is flush with the sides? (don't know why I wrote 15 3/8 :-))
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Old 9th January 2013, 02:35 AM   #23
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The side panels (x2) are each 17 3/4" by 46 1/2". The front is 11" by 44 1/8". The back is 11" by 46 1/2". The top is 11" by 16 1/4". The bottom is 11" by 17". The port piece is 11" by 3 1/4". So Ron, your dimensions were correct minus the front baffle.
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Old 9th January 2013, 12:10 PM   #24
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Quote:
Originally Posted by Dumbledog View Post
The side panels (x2) are each 17 3/4" by 46 1/2". The front is 11" by 44 1/8". The back is 11" by 46 1/2". The top is 11" by 16 1/4". The bottom is 11" by 17". The port piece is 11" by 3 1/4". So Ron, your dimensions were correct minus the front baffle.
Thanks for the correction, I have updated my design/documents on my end.
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Old 9th January 2013, 12:52 PM   #25
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Do we have the following information on the Betsy-K:

Impedance of the voice coil (Lvc)
Width of the baffle in inches (Wb)
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Old 9th January 2013, 02:03 PM   #26
tubo is offline tubo  Philippines
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What kind of stuffing are you guys planning to use and how much?
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Old 9th January 2013, 02:03 PM   #27
tubo is offline tubo  Philippines
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Stuffing materials i mean
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Old 9th January 2013, 02:56 PM   #28
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You need 1lb per cubic foot of damping material in this enclosure.
You need to put damping in the top 2/3's of the enclosure.

Here is an option: Acousta-Stuf Polyfill 1 lb. Bag 260-317

11x16.25x45 = 8043.75 cubic inches
8043.75/1728 = 4.654947917 cubic feet
4.654947917 = 1.551649306 in thirds

1.551649306*2 = 3.103298612

So you need roughly 3lbs of damping material.
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Old 9th January 2013, 03:16 PM   #29
tubo is offline tubo  Philippines
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Thanks ronvinyl
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Old 9th January 2013, 03:39 PM   #30
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On the PDF of the design the stuffing is listed. About 1.8 pounds in the upper two thirds of each enclosure.
As for the lvc, that I don't know.
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