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Old 11th November 2007, 06:54 AM   #1
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Default Extreme basket tricks

I've been meaning to bring this subject up for awhile. For sometime I've been an advocate of damping/shaping the back of the baskets to get better performance.

In an effort to find alternates we started playing with something called Silent Running SR500. This is a latex damping compound that dries to a hard sandable & paintable finish. It turns out it doesn't totally replace ductseal (at least without some effort) but works in conjunction very well). This compound is repurposed from the boat-building industry.

I'm just going to start by throwing up a few pictures (i have a lot more, plus techniques i've come up with etc)

dave
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Old 11th November 2007, 06:55 AM   #2
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The mule compared to an unmodified unit.
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Old 11th November 2007, 06:56 AM   #3
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And the front to give you an idea of some of the other experiments this driver pair has hosted.
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Old 11th November 2007, 07:30 AM   #4
Nanook is offline Nanook  Canada
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Default and where are the phase plugs?

not a basket trick, but certainly one of your well known tricks
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Old 11th November 2007, 07:45 AM   #5
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Default Re: and where are the phase plugs?

Quote:
Originally posted by Nanook
not a basket trick, but certainly one of your well known tricks
in an experimental set of FE127eN ATM

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Old 12th November 2007, 12:07 AM   #6
BHD is offline BHD  United States
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Oh sure, I buy a ten pound block of duct seal and then you go and come out with something new...




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Old 12th November 2007, 12:42 AM   #7
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Quote:
Originally posted by BHD
Oh sure, I buy a ten pound block of duct seal and then you go and come out with something new...
The duct seal won't go to waste. The SR500 is "painted on". To fill the magnet/basket space on the FE108eS took over 50 applications over a period of 4 or 5 months. Makes more sense to apply 3-10 coats and then fill the rest with ductseal.

Where it really comes into its own is to fill the open volume on the back of the stamped basket Fostex. This not only damps the basket, it quite dramatically increases its torsional ridgitity.

(the picture is a 167 just before painting over the SR500 and using ductseal to finish shaping the basket/magnet)

dave
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Old 12th November 2007, 12:46 AM   #8
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here is a filled FE126 & a non-filled FE127
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Old 12th November 2007, 12:47 AM   #9
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and a pic of the FE108 just before paint.
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Old 12th November 2007, 12:48 AM   #10
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Quote:
Originally posted by planet10
o fill the magnet/basket space on the FE108eS took over 50 applications over a period of 4 or 5 months.
I don't want to even think about what it would take to do FE126/166/206/208 to the same level as these....

dave
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