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

@tecknik Yes, I know that blown drivers can't be repaired. I already have the part number from Dynaudio and some good aftermarket recommendations from the thread. My situation now is figuring out if it's actually the driver that's blown or the crossover. 

What would you recommend to replace the wiring? 

@oldrooney Thank you for the support and commendation! And thanks for the bit of knowledge on the components. If I already knew how to solder I'd be all over this..

But I dont and I'm actually not at a place right now to learn or invest in a good soldering set-up. Someday, for sure. I'll be calling around techs after the holiday break. 

I'll be sure to update this thread with whatever transpires! Fingers crossed thrice it works out. 

It looks like Dynaudio is using standard 12ga copper wire. There’s nothing wrong with that choice, it does the job, especially considering you are talking about runs less then a foot. I’d cut the ends, strip back some fresh wire and reuse it after you have gotten the crossovers repaired. See if there are any speaker repair shops near you, they can fix the crossovers. Or give GR Research a call (1-940-592-3400) they could probably make replacement crossovers as well. The cost to repair can vary greatly depending upon the level of parts used so stick to a budget and don’t let them talk you into high end stuff. I’d keep the budget under $200 for the pair that way you have some budget leftover to replace the drivers. Assuming the cabinets are in good shape I’d peg their value at around $600-700 w/ fresh crossovers, and $900-1000 with fresh crossovers and new oem drivers.

@eidnpniss I re did  my Dynaudio S25 with Neotech OCC 14 awg on the midwoofer and 21 awg on the tweeter. 

OK

1. you have seen/shown us, the crossover has a blown/burnt part. It must be replaced. You can get the crossover board out, that’s how it got in, then get new part from parts express, then ____ who removes/replaces the part. Do you know anyone who can solder? You could easily mail the crossover board to _____?

2. woofer glued: I was wrong: looks like the woofer was previously removed, the sound seal (round foam or rubber ring) was not replaced, so they glued it back in. You should solve that problem when you put the woofer back in: a continuous seal to prevent any air/sound in/out, then screw, not glue the woofer back in.

3. to prove the removed woofer is ok, you can turn the volume all the way down, touch speaker wires to the two tabs on the loose woofer, turn volume up very slightly, see/hear it move, means voice coil is still working/ok. Or, remove other speaker’s woofer, make some wire jumpers long enough for trial.

IF woofer cone does not move, that means the woofer's voice coil got melted. If so, you could ship the woofer to Miller Sound, or replace them both with something parts express recommends.

@xidnpnlss I searched the internet for a Dynaudio 15w38, but as of now, I have not found any helpful info. To replace this with a different driver, you need this info at a minimum.

Very closely matching sensitivity of the driver

Very closing matching impedance at the crossover point (not necessarily stated impedance(

FS & QTS that will produce reasonable bass response in the same box....

I have only found 2 drivers that my best guess will work as a drop in, but without knowing the measurements of the Dyn, there is no way to tell for sure.

If you completely switch drivers, rather than look for a drop in, you can easily modify the crossover and get satisfying results.

I know that you are on a budget, I would start with replacing the burnt resistors,. On a hard budget, I would get the Dayton 1% precision 10 watt resistors (green) from parts express. Most likely, they are the only components burnt in the crossover. Confirm that and let me know. Start there.