Replace Dynaudio woofers?


Hello. I have a pair of woofer blown Dynaudio Contour 1.1s They have been sitting, unused, in a clean, temp controlled room for at least 15 years. I hooked them up recently and the tweeters were emitting sound.

Is it worth to source OEM woofers to replace? Is it an easy job I can manage myself? Any advice would be appreciated. Thank you in advance. 

xidnpnlss

There is no chance you can build anything for $100  . I am speaking quality 

I have been dojng this for over 20 years , my standards are much higher 

having been into Audio for 40+ years, for example these white $2 resistors I use $30 each X4. Path audio ,much better detail ,clearer more open , if on a budget put in 12 watt mills resistors $12 each ,the inductors are Jantzen and good 

the white Mundorf are their lower mid grade Evo capacitors, Mundorfs Best quality are Black their Supreme line . Foil capacitors are better then sprayed conductors.

myself use the much more expensive Jantzen AlumenZ  capacitors ,

and Duelund tinned Copperfoil Bypass caps for the tweeters to complement the Jantzen ,I spent without the Upgraded Cardas wire $1300 just in parts .

that being said you can build a external Xover and use the Best Duelund capacitors 

depending on sizes 3x the monies, why don’t $50k speakers use top quality parts 

is all about saving $$ . I am just pointing out these from a 20 year+ point of expertise .  Just go to Humble homemade hifi capacitor test, the white Evo caps are respectable , and used by a lot of companies but rated roughly a 9

pThe best Duelund a 15,   Just get rid of the 4 -$2 resistors and put in all Path Audio resistors , and a .01 uf Duelund tinned Copper foil cap for the tweeter capacitor you will hear a solid increase in resolution and refinement for under $300.

I am just suggesting it’s your speaker I have been there done many combinations and still do for others ,all depending on budgets.

@xidnpnlss. I have seen the Dynavox drivers, they look fine. I have used the 6 1/2 inch original version of the HiVi. Totem used this driver in the original Forest, needed a bit of work, but turned out very well. I have seen a comparison of underhung woofers years ago, it compared a Morel, the HiVi and the Dyn. All 3 were 6 inch with 3 inch coils. The HiVi was the most preferred. If I can find it, I'll  post. The Dynavox look very good for such a low price, I know parts express has them, not sure about anywhere else. I hope this info helps you out, Tim

@timlub Are these the ones you're referring to? https://www.parts-express.com/HiVi-D6.8B-6-Poly-Bass-Midrange-Shielded-297-444?quantity=1

They look the part. My concern (and please correct me if I'm wrong) is that Dynaudio designed the woofers to work specifically with the tweeter. Wouldn't one run the chance of throwing off the speaker's sound with a driver that is not OEM?

But that may not be a concern after all...

So after trying and failing to remove the woofer with a plaster knife, I approached it from the rear, thinking I could push the woofer out from behind. The wire connector came off more easily, but it had definitely been glued. As I was removing the foam, this appeared:

https://www.dropbox.com/scl/fi/ezr21z0dvga8k6814sbi0/2023-09-02-11.33.22.jpg?rlkey=4flggloj4xpbb00hz9gdkp2ml&dl=0

Burnt foam

 

(I'm not sure the picture is showing up, so I'll described it as a corner of the foam covering the crossover as burnt)

Lo and behold the component looks fried

https://www.dropbox.com/scl/fi/oxd0kdj9hqopde1jq56br/2023-09-02-11.44.51.jpg?rlkey=nxh9irj6nb17p2m4d9re3uuqv&dl=0

Fried component

So maybe I can assume the problem is actually the crossover? It doesn't look good, either way. Do I replace only the component or the entire crossover?

I still need to figure out how to remove the drivers to be sure; plus I obviously need to get the crossover out through the woofer hole. And I want to change the Ferrofluid while I'm at it. I tried pushing it out from behind but it still won't budge: considering the speaker connector was glued, I can only assume it's glued (maybe they didn't glue it on the mkII...I'll contact Dynaudio). Any advice on removing a glued driver? I am honestly stuck ;)

Thank you all again for your help in this journey. For reasons I won't get into, it's been a therapeutic process giving these some TLC after all this time. 

Wow it looks like a short occurred on the crossover, is the other one like that as well? Best case scenario would be the crossovers sacrificed themselves and protected the drivers. Definitely get both crossovers out and give them a good inspection. You might be able to buy replacement crossovers from Dynaudio or even rebuild them better then new using modern parts with the same specs assuming you know how to solder. If that’s the case and it turns out the drivers are still good, this could be a rather inexpensive repair/potential upgrade.  PS. Mine are also Cherry. Love them, there’s something about the older Contour series.  Solid bass, and strong midrange.  They lack the detail of the modern Dyn models, but are almost agnostic to bad recordings.  

@xidnpnlss .   Email me directly.... I'll help you out,use my same name here, then add at live dot com