ReliaBill Engineer

Perhaps I’ll have to be the pioneer here…

For an early model 2ax, I’m looking at these phenolic domes. The domes are relatively heavy, compared to a silk dome, treated silk dome, or thin polyamide dome, or even a titanium or beryllium dome. So I expect a stiffer suspension for this heavier dome. But these well-aged dome suspensions seem to have hardened and stiffened beyond their initial compliance. In looking at the suspension, it appears the 4 yellow globs are both a suspension and damper. Then over the top of it is a clear flexible sealant, that has hardened. The voice coil is attached to the underside of the dome, in the magnetic gap. Am I correct? Anyone in here willing to share their knowledge here? Im pretty sure that my tweeters are being restricted in motion. While I’m getting output, I don’t think I’m getting the full output that was available when new. I’ve rebuilt many vintage cartridge styli, from cantilevers, to tips and suspensions. I’ve also rebuilt tweeters using various parts I’ve found on eBay. I’ve formulated various room temperature curing elastomers that I use to form new cantilever suspensions for cartridge styli. I’m wondering if I should attempt to rebuild these tweeter suspensions.

Yikes! No wonder I had it wrong! The mid and tweeter are breaking in nicely. I’ll give them some time before making a decision. But it would be nice to know what the options are. I have to say that from what I’ve heard so far, they sound better than my dad’s 1966 Wharfdale W70D speakers.

Thank you for correcting me on both issues. I was under the impression the AR2 was from 64-76, the ax version from 69-76. Any info on the tweeters?

I’ve been working on these speakers for a couple of weeks. I see there are different sub-models from 1969-1976. Can anyone tell me where mine fit in? Also the tweeters sound good, but can they be rebuilt? Ive already cleaned the pots and replaced the caps. A couple of sound vids. Just doing 1 speaker at a time. The other hasn’t been corrupted, grill has never been removed: https://youtu.be/tmccEYWNGCY https://youtube.com/shorts/hPa7-tz-ujY?feature=share