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Old 3rd February 2005, 09:37 AM   #31
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Originally posted by kenev
What is this "duct seal" product?
Can someone make a brief description of it?
I too own a pair of FE167 in a TQWT and would like to try managing back reflections to the chassis legs.
A putty like substance that stays malleable for a long time (i've recycled ductseal i 1st used 25 years ago). used in HVAC to seal ducts.

found: online source for duct seal

community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
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Old 4th February 2005, 07:43 PM   #32
smbrown is offline smbrown  United States
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FWIW, I have FE167E's in small (0.5 cu ft) bass reflex cabinets and the sound absolutely awsome. My son commented the other day that I must really like them because they've been in my system longer than any other speaker. Yes, I do like them. I did not install any BSC, though I've experimented with it. Like them better right into the amp. I'm using tubes, both PP and SE. The only tweek I did was to put about a pound of plumber's putty around the magnet and on the outside of the basket. The enclosures I think add a lot here. Mine are cherry plywood, with a solid maple front baffle. The inside of the cabinet has one "H" brace in it (3/4" baltic birch), there is 1/4" felt on one side and the top, the rest of the box is very lightly stuffed. These sounded very nice right from the start, and have gotten better and better.
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Old 4th February 2005, 11:57 PM   #33
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I would be willing to bet that the DF and bandwidth figures
of your tube amps have nicely complemented the FE167's.
You would probably find that there is a little more wiggle room
for performance if you start playing with some passive networks.

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Old 15th February 2005, 02:02 AM   #34
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Well I decided to try an aplication of Duct seal . I put a thin bead around the circumference of the magnet. Also I aplied it to three of the legs on each basket. The sound is much improved , much smoother
not sure about the vocals yet , seems like lost a little presence.

As for the Bass ,I built the horn loaded sub (tuba 18 ) in january issue of audioxpress. Very nice , compliments the speakers nicely

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