[Model 20 black surround question]

Hi RTally,

Thanks for the further confirmation on these, I appreciate it! Best, -Jay

[Model 20 black surround question]

Perfect! Thanks for the clarification, and yes I ordered the genuine stuff off of eBay that I used for my restore a few months back. No worries on any monkey wrenches, better safe than sorry. Any ideas on the voice coils? Thanks again! -Jay

[Model 20 black surround question]

Thanks very much for the info ra.ra, I'm hoping that's what this is! Here is a more closeup photo. There does appear to be a couple of larger globs of this stuff here and there, hoping that doesn't make a difference - just want to be sure I can safely apply the AR vintage sealant stuff as I know these speakers haven't been touched in maybe 15-20 years. I also had a question about the voice coils - when I press down gently and evenly around the woofer, I hear some intermittent rubbing which concerns me. I pulled this cab apart before I even had the chance to test them. I did however do an ohm test and I'm getting a steady reading of 3.5 ohms on the woofer which I believe would indicate the voice coil is intact, but any suggestions about the rubbing? Thanks!

  

[Model 20 black surround question]

Ok good to know, I'll take a look when I get home and see what the texture is like and I'll try to post an up-close picture of it.

[Model 20 black surround question]

Very nice!! Thanks for the info as always, must have just been a different "flavor" out of the factory - the only ones I've worked on have been tan colored. It was interesting taking these ones apart and seeing some subtle differences between them and mine - back in the days where mostly everything was done by hand and not a fully automated assembly line. 

[Model 20 black surround question]

Here it is, thanks!

[Model 20 black surround question]

Have a pair of Model 20s I’m restoring for a friend. The woofers have black surrounds - I’ve seen these on some eBay listings as well. Was this a factory thing, or a re-seal done at some point in time? Thanks for any help!