Sonotube Design Help Needed |
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Huck2me
New Member Joined: 08 February 2017 Location: SC Status: Offline Points: 2 |
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Posted: 08 February 2017 at 4:51pm |
I have ordered a FiAudio BL Series – BL18v3 Woofer which I plan to build a sonotube sub for use outside (covered) pool deck. I will be powering it with a Behringer NU3000DSP.
From the SonosubV2.03 calculator using a 24" diameter sonotube I am getting 27 3/8" height, 3" diameter port 1 1/4" long. This does not seem correct. The BL18v3 Woofer specs are as follows. FS 33.6 Hz RE 0.7 | 1.4 QMS 8.21 QES 0.42 QTS 0.40 MMS 338g CMS 0.699 SD 1210cm^2 VAS 136.0 l SPL 92.8 l BL 15.5 N/A | 21.9 N/A XMAX 20mm (One Way) Overall Diameter 18.500” Cutout Diameter 16.750” Mounting Depth 9.750” Driver Displacement 0.26cuft Ported Box 5-8 cuft If anyone could run these numbers for a 24" diameter sonotube. Thanks in advance. |
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_djk_
Old Croc Joined: 23 November 2004 Location: United States Status: Offline Points: 6002 |
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The size seems right, but the port is too small for the x-max.
I would not face the driver straight down because the cone will eventually sag. |
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djk
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