Extreme basket tricks

planet10 · 11th November 2007, 06:54 AM

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

planet10 · 11th November 2007, 06:55 AM

The mule compared to an unmodified unit.

planet10 · 11th November 2007, 06:56 AM

And the front to give you an idea of some of the other experiments this driver pair has hosted.

Nanook · 11th November 2007, 07:30 AM

not a basket trick, but certainly one of your well known tricks

planet10 · 11th November 2007, 07:45 AM

Quote:

Originally posted by Nanook
not a basket trick, but certainly one of your well known tricks

in an experimental set of FE127eN ATM

dave

BHD · 12th November 2007, 12:07 AM

Oh sure, I buy a ten pound block of duct seal and then you go and come out with something new...

planet10 · 12th November 2007, 12:42 AM

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

planet10 · 12th November 2007, 12:46 AM

here is a filled FE126 & a non-filled FE127

planet10 · 12th November 2007, 12:47 AM

and a pic of the FE108 just before paint.

planet10 · 12th November 2007, 12:48 AM

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

11th November 2007, 07:30 AM	#4
Nanook diyAudio Member Join Date: Feb 2004 Location: Chinook Country.Alberta	and where are the phase plugs? not a basket trick, but certainly one of your well known tricks __________________ stew ☮ -"A sane man in an insane world appears insane."

12th November 2007, 12:07 AM	#6
BHD diyAudio Member Join Date: Jun 2004 Location: Brooklyn Park, MN	Oh sure, I buy a ten pound block of duct seal and then you go and come out with something new... __________________ My religion is the golden rule. The only time it's forsaken me is when I've forsaken it first.

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