Where to find OEM Dali Epicon woofer?

Tweeters burn out far more often. Open up the speaker and see if there is a loose connection with a lead or in the crossover.  If all is good, contact the manufacturer. Lastly, google is your friend.

Since your dealer isn’t responding, you could try contacting Lenbrook if you’re in the US or Canada since they distribute DALI. Their toll free number and email is at the bottom of their website: https://www.lenbrookamericas.com/

Call first and talk to Bill, then send your woofer to Millersound Speaker service for expert repair.  Search A'gon for excellent reviews.

Millersound Speaker Refoaming, Speaker Reconing and Repair Services

If you need a new driver they make their own drivers. You need to buy one from Dali and go through a dealer most likely.

Thanks everyone, I'm in Bay Area, CA, hope to find a local dealer or repair shop.

Hmmm...blown woofers usually still make sound.  Check the connections and if the speaker has multiple binding posts make sure the jumpers are fastened correctly.  Good luck

Listen, not calling Millersound is a really big mistake.  He lists Dali as a brand he services.

His only business is speaker repair.  If he takes it on, your speaker will sound and look as new, or he won’t repair it.

Again, do a search on Millersound here on A’gon.

@bill_k is right. if your speaker is under warranty, lenbrook will replace your driver. i had a rattling mid-woof and they sent me a brand new one. quick turn around, too. was an easy fix. I had to provide them with the receipt of my purchase, of course.

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Again, before you order an expensive driver or ship your speaker, for the love of Pete, pull the woofer and hook it up directly to your speaker cable.  You need some due diligence here before deciding on a course of action.

Call Simply Stereo in Palatine, IL. Ask for Lee. Awesome guy, big DALI dealer.

Write to Dali tech support. https://www.dali-speakers.com/en-us/about-dali/technical-support/
They are a little slow to respond, but when I talked to them a couple years ago to discuss technical question Britta Olsen was pretty helpful. 

Hey John, check your private messages.  Just sent you some info that will hopefully help!