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Old 19th September 2012, 04:15 PM   #21
ODougbo is offline ODougbo  United States
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I needed a REASON to go to HD.... Oh boy morning brain freeze.

At least I didn't type raisin.......

I have moretile on the brain, have full box of that, which is very sticky.
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Old 19th September 2012, 09:28 PM   #22
ODougbo is offline ODougbo  United States
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Gave this a quick check to see if I'm the right ball game.

The 13mm slot vents (wood pieces) are big enough, was a little worried about that.

As it sits here, the Fs is 45hz (too low) can simply trim vents down to raise it.

Generator & volt meter test:

35hz @ 4 volts

45 valley

85hz @ 7 volts

Going strong to 50hz, there is a dip around 100hz, but haven't trimmed/raised the tuning yet.

The speaker sounds pretty smooth
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Last edited by ODougbo; 19th September 2012 at 09:32 PM.
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Old 19th September 2012, 10:53 PM   #23
ODougbo is offline ODougbo  United States
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Trimmed ports to about 4" wide (cut about 3/4" of each one)

Looks good:

38hz @ 6v Peak
50-51hz Valley
80hz @ 7v Peak

Last edited by ODougbo; 19th September 2012 at 10:56 PM.
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Old 20th September 2012, 09:49 PM   #24
ODougbo is offline ODougbo  United States
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Had to square up the vent pieces anyway ...4" I wish I had known that.

It took at lot of trimming to move up the Fs, which is now 52hz
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Old 20th September 2012, 09:57 PM   #25
ODougbo is offline ODougbo  United States
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Now chrisb... What was I saying about extra glue and solid construction?

For the DIYers, you don't need a dozen clamps; blocks of wood and weight will do the trick. Buckets of sand, whatever........
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Old 21st September 2012, 11:29 PM   #26
ODougbo is offline ODougbo  United States
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Default The Odoug Bro II

Pic
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Old 21st September 2012, 11:36 PM   #27
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Nice!
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Old 21st September 2012, 11:59 PM   #28
ODougbo is offline ODougbo  United States
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woodshop was the only class I got A(s)

Or just ahead of my time ;-0

Last edited by ODougbo; 22nd September 2012 at 12:24 AM.
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Old 22nd September 2012, 03:13 AM   #29
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Doug,

Sure looks like you "KEFed" those majorly...

Mine are ready to try out again.

Click the image to open in full size.

dave
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Old 22nd September 2012, 10:04 AM   #30
ODougbo is offline ODougbo  United States
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Thanks Dave...all ready staying up at night thinking about dots

My drivers are a little different, they have a flat back (magnet) which I might glue cork on.

I might re-do the silicon; it looks messy now, will try a softer brush. Will slip a piece of paper in the VC for protection.

My son stopped by, I had Alan Jackson on; he was amazed at the sound.
[all my good CDs got stolen at work, so using sons collection. The Alan Jackson CDs are very well done recordings (btw, he has 50 top hits). I never would have thought light country would sound good on small, single cone speakers]

They do sound very nice, I didn't hear the "plastic" sound. They are dipping down pretty low; sound like a 7" in a BR box. However I want to raise the bass level just a bit, just for the wow factor. I'll try a BSC. Although, the bass really dips down (sub woofer territory) 20' away....wavelength I guess

All said, they didn't quite have the same depth and imaging as the fostex with the mods, not bad though, might make some more.

btw, ordered the expensive wool $50 bucks, its not fluffy enough; 7oz just filled 1/2 the box, so I tuned them upside down (gravity). Back to the craft store, might have to open a few bags; they have racks of different textures.
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