Speaker Asylum

RE: Altec Santana PICTURE

65.27.134.240

Phil D

In Reply to: RE: Altec Santana posted by unclestu52 on May 26, 2007 at 12:39:22

I posted a picture of what I am up against....the other speaker does not have goo on the cone but it has dripped down between the baffle and grill....

Please let me know what you think.

THANKS!

Follow Ups:

oohh... wait a minnit.. - stuck.wilson@gmail.com 15:15:00 05/26/07 (0)
yeah-- i'd take a razor knife and separate that from the wood far enough into the wood that you KNOW you're not hitting the surround... with enough vibration, you might damage your surround.. you'd have to be gingerly about it.. but that's a LOT of doping! don't SWEAT it.. but be careful, and i think you'll be alright!

d
RE: Altec Santana PICTURE - Chef Henry 14:12:50 05/26/07 (0)
Your goop is very common on specimens of the 755C. Do not disturb! That gloppy biflex is a thing of beauty, visually and aurally. You can find out more on Ken Hagelthorne's www.hifilit.com site, and Don McRitchie's www.audioheritage.com. In the case of the latter, you can register and pose your question to bona fide Altec experts. They are certain to make suggestions regarding the existing tweeter, which as you have alreay pointed out is not the Santana's strong point. The biflex's great attraction to DIY-ers is as a single driver that covers almost all frequencies of musical interest, permitting a very high crossover using a single capacitor to something really tasty, like Altec's own 3000, although these have become absurdly expensive.
Argggh! - unclestu52 14:12:22 05/26/07 (1)
I had some Altecs with the cones in a similar condition. The cabinet was really trashed and showing termite damage so I decided to pull the drivers. That goop on the bottom literally ripped out the surround (i hadn't removed the wooden latticework grill to inspect). I wasn't too worried because I know how to recone the drivers (Great Plains has the kits available, BTW).

I haven't tried it, but I am thinking that a hair dryer, carefully applying heat to the area, will loosen the goop. I remember trying to cut through the puddle, but it reforms fairly quickly or at least still sticks, and the stuff that drips between the speaker and the cabinet is impossible or nearly impossible to access. Might want to try turning the speaker upside down when experimenting.

Or perhaps simply leaving the speaker upside down in a warm place for a few months may reverse the puddle. Maybe you may want to try cutting off the excess (with an x-acto knife, carefully) and then inverting the speaker and applying heat. As the puddle rises to the center of the surround it must be affecting the movement of the cone to a certain degree. This would essentially redistribute the goop without having to remove the driver and possibly damaging it.

Incidentally Great Plains also carries that goop used in case you need it.

Good luck, remember patience is the key. It took years for it to puddle and you can't reverse the process overnight.

Stu
- PS - unclestu52 14:13:43 05/26/07 (0)
  Maybe Great plains may not have a recone kit for the driver, so be very careful!
  
  Stu

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