B&W DM-220 help

[fazman]

Anyone have a crossover schematic for these? I'm looking for the value of one of the coils. I can't even measure it as it is burnt to a crisp. It's the inductor coil in the tweeter part of the crossover. The woofer coils are fine.

If anyone has the schematic or knows what the value of that inductor is, I can't tell you how much help you would be. I'm thinking it would be a .3mH but that is just a guess.

Thanks in advance guys.

 

[rushfan]

My brother's DM-220's keep blowing tweeters. I'm starting to wonder about those crossovers...

 

[fazman]

My brother's DM-220's keep blowing tweeters. I'm starting to wonder about those crossovers...

It's the resistor... It blows up and catches fire. Mine left a major black mess on the x-over board. Burnt the one inductor to a crisp. the tweeter is fine as the crossover took the brunt.
To mine, this happened before I got them, so now I'm stuck fixing the issues.

 

[andylsun]

Old thread bump - all the technical/service manuals are available at

http://www.bwgroup-support.com/techmanuals.html

Contains full schematics and part values for the DM220 in the DM220 Tech manual.