Subwoofer with TB W5-1685 - diyAudio
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Old 8th December 2010, 10:28 AM   #1
clrs is offline clrs  Netherlands
diyAudio Member
Join Date: Nov 2010
Default Subwoofer with TB W5-1685

Dear all,

after building a pair of Lancetta's I am looking for a small sub to support them.

The idea is to build two small subwoofers with the Tangband W5-1685: click Is it possible? Or should I go for the W6-1139SG or W8-740 which are actually designed for subwoofer use?

First results with WINISD:
Vented box, volume~21 liters, tuning frequency~43 Hz, though I'm having some troubles with the group delay, which is too high.

Any suggestions?

Kind regards,
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Old 8th December 2010, 01:48 PM   #2
diyAudio Member
Join Date: Feb 2009
I have no experience with the w-5, but yes I would seek a driver intended for sub duty. I built some tapped horns with the 1139 that perform well. I've also been tinkering in winisd with the 740, as I bought 2 for cheap on cyber monday. Sims are promising- 0.75ft3 sealed, factoring in 6db boost @ 30hz and a lowpass @ 80. I tried simulating ported but the driver specs call for such a long port it wouldn't be possible to fit a port in a modest sized cab.
Here's the sealed response.....
Attached Images
File Type: png w8-740p sealed.PNG (115.1 KB, 196 views)

Last edited by steviedon; 8th December 2010 at 02:02 PM.
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Old 8th December 2010, 08:14 PM   #3
clrs is offline clrs  Netherlands
diyAudio Member
Join Date: Nov 2010
W8 could be both vented and sealed. I read somewhere it could be 5 liters sealed or 10 liters vented (f3=41 Hz). Going to try this myself with WINISD. I will post some results soon.
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Old 20th December 2010, 03:41 PM   #4
clrs is offline clrs  Netherlands
diyAudio Member
Join Date: Nov 2010
Decided to use a Tangband W69-1042 with following results:

Volume = 28,00 liters
f3 ~ 40 Hz

port length = 20.00 cm
port diameter = 6.8

both WinISD and the calculator from gave the same results.
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File Type: jpg WinISD_W69.jpg (128.1 KB, 136 views)
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Old 20th December 2010, 05:22 PM   #5
gooki is offline gooki  New Zealand
diyAudio Member
Join Date: Dec 2008
Looks good.
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