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Altec 515B- original cone vs. aftermarket
Altec 515B- original cone vs. aftermarket
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Old 21st October 2019, 08:26 PM   #1
Schmitz77 is offline Schmitz77  Germany
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Default Altec 515B- original cone vs. aftermarket

Hello,
could some expert please confirm whether this is an original Altec 515B cone or an aftermarket one. Never seen such a cone on original Altec speakers, hence my question. Could maybe made by GPA?
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Last edited by Schmitz77; 21st October 2019 at 08:41 PM.
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Old 21st October 2019, 10:40 PM   #2
Cal Weldon is offline Cal Weldon  Canada
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Altec 515B- original cone vs. aftermarket
Hard to tell, what numbers are on the other side?
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Old 22nd October 2019, 07:27 AM   #3
GM is offline GM  United States
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TTBOMK, GPA cones should look just like my '50s originals and '70s recones of another '50s pair, which these don't. Not only is the obvious pebble grain missing, that shiny band the dust cap is in shouldn't be there plus the screens don't look right to me.

Look carefully and you can see the grain plus screen detail: SR System Audio: GREAT PLAINS AUDIO – GPA 515-8C vs GPA 515-8G

GM
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Old 22nd October 2019, 02:24 PM   #4
Schmitz77 is offline Schmitz77  Germany
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One cone is stamped "OCSC-5165". Is this original Altec cone number?
Yes, there are many things look non- original, the band around the dust cap, visible grain structure missing, the surround has no shining laquer painted on, color of the cone seems light blue/green. But seller (like any other seller) claims the cones to be original Altec. Its just that I would like to judge myself and learn how to select original Altec cones vs. aftermarket, because aftermarket shoulnd't sound as good as the old originals.

Last edited by Schmitz77; 22nd October 2019 at 02:27 PM.
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Old 22nd October 2019, 07:03 PM   #5
GM is offline GM  United States
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Sorry, no. It's an Orange County Speaker re-cone: Orange County Speaker Repair is now GLS Audio

Worse, even later 515B, factory re-cones don't sound the same and it's my understanding that GPA can only replicate the last version of it, so for me if mine should become damaged I'll probably just sell them as is and move on now that there's other brand's neo motor drivers with as good or better 'tone', etc., plus higher power handling, less weight [a big deal now at my level of decrepitude ].

GM
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Old 23rd October 2019, 08:27 AM   #6
fred76 is offline fred76  Philippines
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Originally Posted by GM View Post
Sorry, no. It's an Orange County Speaker re-cone: Orange County Speaker Repair is now GLS Audio

Worse, even later 515B, factory re-cones don't sound the same and it's my understanding that GPA can only replicate the last version of it, so for me if mine should become damaged I'll probably just sell them as is and move on now that there's other brand's neo motor drivers with as good or better 'tone', etc., plus higher power handling, less weight [a big deal now at my level of decrepitude ].

GM
Hi GM,

This guy’s recone job of older 416 variants using the GPA kit kinda hints that the mass is now somewhat heavier and the dustcap screen vent is thicker than the old ones, with a water-based goop used this time for the surrounds.. It’s interesting that they sent him the wrong size gaskets?

Still, looks top notch quality though..

YouTube

Last edited by fred76; 23rd October 2019 at 08:29 AM. Reason: Double copy-paste
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Old 23rd October 2019, 11:20 AM   #7
EarlK is offline EarlK  Canada
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Originally Posted by fred76 View Post
Hi GM,

This guys recone job of older 416 variants using the GPA kit kinda hints that the mass is now somewhat heavier and the dustcap screen vent is thicker than the old ones, with a water-based goop used this time for the surrounds.. Its interesting that they sent him the wrong size gaskets?

Still, looks top notch quality though..

YouTube

Thanks for the link, that's a nice recone video.

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Old 24th October 2019, 05:51 AM   #8
GM is offline GM  United States
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Quote:
Originally Posted by fred76 View Post
Hi GM,

This guys recone job of older 416 variants using the GPA kit kinda hints that the mass is now somewhat heavier and the dustcap screen vent is thicker than the old ones, with a water-based goop used this time for the surrounds.. Its interesting that they sent him the wrong size gaskets?

Still, looks top notch quality though..

YouTube
Greets!

Interesting! Have read lots of folk's that have used GPA recone kits, some on even really old drivers and nary a one has commented about the gasket issue or different DC screen.

EPA mandated the switch to a latex based dope, but C.P. Moyen's replacement works just as well as its acetone? based predecessor and a heck of a lot less messy, smelly.

Re added mass, the 16 ohm were heaviest, then beginning with the 8 ohm they dropped down, then each new model was heavier, working their way back to 16 ohm weight.

I can only speculate as to why, but the lightest is the 416-8B, so combined with AlNiCo, little wonder why it's the all time fan favorite.

GM
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Old 24th October 2019, 12:42 PM   #9
fred76 is offline fred76  Philippines
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You’re welcome, EarlK..
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Old 24th October 2019, 12:44 PM   #10
fred76 is offline fred76  Philippines
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Hi GM,

I never knew that info, from ‘heavy’ to ‘light’ and slowly back to ‘heavy’ again.. Thanks!
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