Duntech repairs?


Hello, I just acquired an early pair of Marquis. The previous owner says they are all original but one driver is clearly different. I contacted Duntech and they said they had NOS Vifa recone kits but did not give me pricing and would only recommended I sell the old Marquis and buy the new Marquis model from them when released. I have asked for information (removal proceedure) to verify drivers and repair/recone pricing three times but they have not responded. Any advice from vintage Duntech or Dunlavy owners?
sugarshed
Yes, Madisound has been in business for years, I just received a pair of Scanspeak tweeters from them today. Give them a call and see if they can help. I am not an expert on Duntech except to know that they were a respected brand.
Hi Sugarshed. I happily owned a pair of Duntech Princess speakers for 19 years. They remain one of the most musically satisfying speakers I know of.

I had to replace two woofers (yes, Dynaudio) in mine following a DC pulse from a misbehaving amp. That was several years ago and at that time Dynaudio would only sell replacements to manufacturers, not individuals. I tried Madisound since they once sold Dynaudio drivers but they could not help. Eventually I got assistance through a manufacturer friend and found original replacements. Perhaps stories like mine are why you found a Vifa in your Marquis? I understood all woofers in the Duntech Classic line (not for Dunlavy Audio) were Dynaudio but I can't be certain.

As for removing your woofer, they are installed with an adhesive as well as screws to ensure they remain air-tight. After removing all the screws, use a wide blade screwdriver or stiff putty knife blade and gently work your way around the basket rim (use a stiff, thin object underneath to avoid pry marks). Pry just a little at a time and move along a few inches. That should work the speaker loose.

I'm very disappointed to hear of your response from Duntech. I believe they have new owners and that is no way to carry on the original reputation for customer support.
Hello, thanks for the info and big thanks to Pryso for the removal instructions. You must know the speaker better than Duntech, which did respond after a 4th email but told me they should come right out unless the previous owner used adhesive for some reason. They also said the original drivers were Vifa (not Dyn) in this model. I will try the removal tomorrow and see what's what.
I would contact Bill LeGall at Millersound for his opinions;he is very highly regarded in the speaker repair industry and a nice guy to talk with.
Sugarshed, I'm not familiar with the Marquis but I assume it has 2 woofers per speaker in a D'Appolito array since John Dunlavy favored that design. I would examine the other three woofers to identify their brand and model number, then find a replacement based on that.

Duntech made a big deal over matching and measuring individual drivers and keeping that information on file. This would allow them to match any given driver if a replacement was necessary. I suspect, but am not certain, that crossovers were then tailored so that response measurements fell within their specs. Fortunately for you, this may be less important for a woofer than for a mid or tweeter.

So the point is, even without matching the original woofer for factory specs, a replacement should at least be the same brand and model as the original. Your odd matched woofer is likely compromising the potential sonics of a fine speaker.

From what I know, Millersound is as good as any speaker repair facility you can find. But I would not bother replacing the surround on one driver that didn't match the other three.