W5-1611 SAF - The Sequel - diyAudio
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Old 15th September 2012, 05:25 PM   #1
ODougbo is offline ODougbo  United States
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Default W5-1611 SAF - The Sequel

I see a few folks have tried different designs for the W5-1611SAF, so going to try my luck.

Since I typically dance to the beat of a different drum here is the direction I'm headed.

I had a few ideas but was inspired by plans found here (post 13):

onken as a near field monitor

AND other full range boxes with a W shape & flare ports. This will be a combination of both (similar to red box). The tuning will be done on the work bench by trimming the flare ports. Not easy to see in pic. but glued 4 pieces of 5" x 1/2" poplar that will be cut/fit/sanded and again, trimmed as needed.

Cones are coated - thin layer of RTV 118.

Speaker Driver: http://www.tb-speaker.com/detail/0624_11/w5-1611saf.htm
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Old 15th September 2012, 06:24 PM   #2
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Following along.

jeff
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Old 15th September 2012, 06:50 PM   #3
fakeout is offline fakeout  Canada
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It looks like the slots on the side are wider. I don't know anything about modelling yet, but did you model it before doing that?
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Old 15th September 2012, 07:02 PM   #4
ODougbo is offline ODougbo  United States
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The slots look wider, but only 1/2".

Here is the WinIsd sim: the box volume (without sides) is 1160 square inches (19 liter).

The sim is 1/2 liter smaller (for woofer, cork and dowel).
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Old 16th September 2012, 12:42 AM   #5
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Keep forgetting to post some average numbers I took off 4 neo's maybe 14 months ago. FWIW.

fs 80.7
qts 0.5536
qes 0.7888
qms 1.8572
vas ft3 0.2441
vas L 6.9139
re 6.8442
le 0.1516
eta 88.4
BL 5.450
cms 587.7
mms 6.772
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Old 16th September 2012, 11:10 AM   #6
ODougbo is offline ODougbo  United States
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Fs is 20hz off? I'll check that here.

Jeff, went back to WinIsd, found out could not work vent sizes in inches - used mm and then had to trick the widow and start high and work my way down. [kept losing the response line]

Here's what I can up with two (2) vent/ports (L&R).

4 wood strips = 52mm, 13mm each.
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Last edited by ODougbo; 16th September 2012 at 11:13 AM.
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Old 16th September 2012, 06:04 PM   #7
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what's the difference in sound with the coated cone?
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Old 16th September 2012, 08:59 PM   #8
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following also
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Old 16th September 2012, 09:16 PM   #9
ODougbo is offline ODougbo  United States
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John, glad you are still here.

The silicon:
(1) Only use RTV112 or RTV118; they are self leveling products
(2) it will give you more bass - easy trick to lower the response
(3) the speaker guru that we used to work with, said it took the ringing out
(4) I think it makes a plastic cone sound more natural
(5) it is easy to take off if you don't like it
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Old 16th September 2012, 09:42 PM   #10
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how do you apply it, with brush?
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