After I did a Fs sweep of my 2235Hs and found the Fs was the same as the 2234H, I decided to order 4 dust caps and 4 mass rings.
After some leg work I found that JBL still sells these and bought four of them. They arrived today.
I think they are made of zinc. I massed one and it weighs 33.39 grams.
Now I need to cut off the old dust caps, install these, and put the new dust caps on and the drivers should operate like they were originally designed to.
Central Florida Speaker Repar in Orlando got these for me for about $3.00 each.
Anyone ever cut off an old dust cap? I would think that I could cut them off with an Exacto-knife, but I am concerned about the affect of the magnet pulling on the blade while I work.
I can just imagine the knife blade getting sucked into the voice coil as I cross the JBL event horizon.