I reached out to the Dynaudio facebook page about replacing woofers in a pair of Oracle Helicons that are over 20 years old. We were dealers for this product many years ago and this is an original demo pair that we want to sell. Woofers are rotted from sitting in a warehouse.

The original woofer is a Dynaudio 24W100-06. The person managing facebook messages for dynaudio suggested I contact a Dynaudio dealer to buy one of these models as replacements:

Dynaudio 87532
Dynaudio 87361

I contacted Dynaudio directly via email but they didn't respond. I contacted a dealer but they only carry parts for Pro gear not home or car.

Anyone here a Dynaudio dealer? Got a parts catalog you can share? Can you help me get replacements?

Thanks.

Try Madisound, Meniscus or other vendors that used to sell the raw drivers, maybe they have recone kits or or a unit buried in the back of the warehouse under el cassettes.

Try here

https://www.speakerrepaircenter.com/
Or
[Link: parts-express.com]

i think Blackwire is a disty for Dynaudio now. try to get a hold of him.

Yup. Try Kevin at Blackwire
[Link: blackwiredesigns.com]

I will contact Kevin. I actually got in touch with Oracle a couple months back. They checked their warehouse in hopes of finding dead stock but couldn't find anything. They offered to refurbish the woofers for me at a shockingly low price.

The woofers are hard to get to. It took me an hour to get the first one apart. The pieces are heavy and they have wiring running through rough piloted holes in the base. I feel like i should just put new woofers in because it would suck to sell these to someone and have them fail. I have a work bench and some understanding of the "niche audio market science project" products. I cant even imagine trying to talk someone through getting them apart and i wouldn't want to have to do it away from a workshop.

I'm not keen on "dead stock" parts that might be as ancient as the rotted woofers you have on hand. Some of the surrounds of that era are simply a ticking time bomb. The ticking is accelerated by sunlight and humidity.

I don't remember seeing Dynaudio drivers with foam surrounds, only Butyl rubber. Those last longer than any other kind, unless they're exposed to direct sunlight.

The refurbish option from the manufacturer could be a better route than replacing with something else that just happens to be the same brand. A refurbish get you the original woofer back in there, around which the cabinet and the electronics were designed.

We used to have Allen's Reconing here in Houston. Had MANY woofers and mids reconed there over the years. Sadly, I heard that they finally closed their doors.

Say it ain't so!

The surrounds are not foam. It looks like super thin rubber. If you touch the surround it just melts into goo. My only fear with having them repaired is that then we find out the spider is in worse shape than it looks. Kevin is working on it. Hopefully Dynaudio can get me something similar.

Mids are in great shape and tweeters are ribbon so luckily its just the woofer.

While you are inside, check the crossover capacitors. If they are electrolytics, I'd be suspicious.

buzz,
many speakers, even high quality ones, used NPEs (non-polarized electrolytics) in their crossovers. I suppose, like some power supply capacitors, these could go bad. One of these consisted of two electrolytics in series back to back + to - connected to - to +.

Have you called them directly? They're based in the Chicago area.