Dynaudio 12" woofer repair (spider torn)

[Jexx]

I recently got a Dynaudio BX30 studio subwoofer, however it was making a horrendous popping sound on heavy bass notes. I took it apart and found that the spider is torn (about 180degrees is detached now).

Attached are pics.

What kind of glue could I use to repair this? is it even worth it?

[TundraLTD]

Google 'speaker repair service' they are usually very reasonable. I use http://www.nealspeakerrepair.com/ here locally

[Jexx]

Originally Posted by TundraLTD

Google 'speaker repair service' they are usually very reasonable. I use Nealspeakerrepair.com - Speaker Repair | Speaker Rebuilding | Speaker Refoaming | Speaker Reconing here locally

Thanks a ton!! I gave him a call and left a voicemail. I will likely use that company as you've had a good experience with them.

[Djim]

Hi Jexx,

Your pictures aren’t very clear if the spider is really torn off or just came loose from its adhesive. Even if the spider just came loose there is still a good chance the aluminium piston (bobbin) is slightly bent and in that case repairing is no option. I have seen one similar case with the BX30 but that was the result of a removed low-cut filter because the owner loved the extra LF content. We had to replace the driver and Dynaudio didn't support it under guaranty since it was an user fault.

As far as I know there are no recones available (only the foam and rubber surrounds from 3rd parties but not complete recones) for Dynaudio’s since it is against the policy of Dynaudio. For replacement you have to contact an authorized Dynaudio Pro dealer for replacement.

My advice is to send first an e-mail with your pictures to Dynaudio (make sure you give the code number of the driver and the serial of the BX30) in Denmark because this should not happen under ‘normal’ circumstances. Maybe they can/will arrange something.

[Jexx]

It's actually torn off. I apologize about the pics! It makes me feel that dynaudio is really poorly made stuff, honestly, because just as you said, this should NOT happen under normal functioning.

Dynaudio has some sort of warranty, then for this? I'll email them as well and see what they say. Very helpful advice so far. Thanks guys.

[Djim]

Originally Posted by Jexx

It makes me feel that dynaudio is really poorly made stuff.

I understand your feelings but their 'stuff' has actually one of the highest qualities checks you can find in engineering and production and every stage is documented for their Pro products.

[Jexx]

Originally Posted by Djim

I understand your feelings but their 'stuff' has actually one of the highest qualities checks you can find in engineering and production and every stage is documented for their Pro products.

I agree that their equipment is looked over very well! Though I'm somewhat on the fence since I realized the cone of the driver is a rather flimsy, thin plastic, and truthfully, the spider (despite the tear) feels weak. Ah well. I'll see if it can be fixed for a reasonable price and hopefully restore my hope in dynaudio. Thanks.

[m R g S r]

Is it an authentic dynaudio or is it one of those Chinese copies?

[Jexx]

It's authentic, definitely. The sub sounds really nice when the speaker isn't cranked up and rubbing against the busted spider.

[Djim]

Maybe the cone feels flimsy compared to traditional cones but in fact these are high engineered magnesium silicate polymer based cones that are very light and rigid in the same time. The internal damping of the material is higher then traditional types.

The spider is loose enough to keep the cone untouched in vertical movements (very low dynamic compression) but it is strong enough to keep the cone from moving horizontal.All together it gives a sound of its own kind that is typical Dynaudio.

It is not for nothing that Dynaudio is one of the leading manufacturers in Studio monitoring. That means studio’s around the world with almost unlimited budgets when it comes to monitoring choose for Dynaudio because of the quality.

The only thing I don't like is the popularity that forced them to have a marketing department. This created a bigger distance between developers and end users and that can be frustrating sometimes. I guess that's the price of success.