• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Title: Altec 604-8H – What fabric/material is the dust bib (top spider) between cone and Mantaray horn?

Alkaziner

New Member
Hi everyone,

I have a pair of Altec 604-8H Duplex drivers. One of them is missing the fabric ring that sits between the woofer cone and the base of the Mantaray horn — the piece sometimes called "dust bib" or "top spider".

I know this part is not included in any recone kit (Speaker Exchange and others all say to reuse the original), and GPA is no longer around to source it.

My question is specifically about the material: it is clearly softer and thinner than a conventional speaker spider — more like a fine woven cloth or thin fabric. Has anyone here actually fabricated a replacement for this piece? If so:

- What material did you use?
- Where did you source it?
- Any tips on cutting and gluing it correctly so it doesn't restrict cone travel?

I have the driver that still has the original piece, so I can measure the ID and OD — I just need to identify the right fabric before I cut anything.

Thanks in advance. Any help from those who have done recones on the 604-8H or 604-8K (same horn) is very much appreciated.
 
Register to hide this ad
Back
Top Bottom