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Multi-Way Conventional loudspeakers with crossovers

Internal volume calculation
Internal volume calculation
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Old 21st January 2019, 01:41 AM   #1
Trev98 is offline Trev98
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Default Internal volume calculation

i would like to know how does one go about calculating the internal volume of a dual 15 inch 3-way way speaker enclosure when the back width if different from the front ,in order to get the right tuning frequency and internal volume required for the 2 woofers .Is there a software i could use?

External Dimensions

High 42
Depth 21
Front width 17.5
Back width 13.5

wood thickness = 5/8

Image of the speaker in the link provided
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File Type: png Dual 15.png (28.5 KB, 73 views)
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Old 21st January 2019, 01:56 AM   #2
uraberg is offline uraberg  United States
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I'm not quite sure, but I'd think in this simple case, you can take the average width for your calculations.
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Old 21st January 2019, 03:13 AM   #3
Dave R is offline Dave R  United States
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top view is a trapezoid. hope this helps.
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Old 21st January 2019, 05:03 AM   #4
tsmith1315 is offline tsmith1315  United States
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L x W x H

As mentioned, for a trapezoid use (w1+w2)/2 as the width, which is 15.5"

If those are external dimensions, subtract 1.25" off each measurement for internal volume.

Subtract the volume occupied by any internal parts, braces, speakers, etc.
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