Rebuild of Sound Dynamics 500 Series Concert Monitors

Rebuild of Sound Dynamics 500 Series Concert Monitors


Project Category:

Project Level:

Project Time:
20+ Hours

Project Cost:
$100 – $500

Project Description:
Rebuilt 4 Sound Dynamics 500 Series Concert Monitors. Re foam 10″ woofers. Installed new film and foil capacitors in crossovers. Custom machined adapters for new Morel tweeters.

Design Goals:
To get my 35yr old speakers working again. And yes it is possible guys. The guy`s and gal`s at Parts Express helped out all the way thru.

Driver Selection:
Woofers are bone stock. Tweeters are Morel 378 Cats.

Enclosure Design:

Enclosure Assembly:

Crossover Design:
Stock at 2000. Replaced old caps with Dayton film and foil.

Got these old speakers rocking again!

About the Designer:
Just an average guy.

Project Parts List:

Dayton Audio DFFC-0.47 0.47uF 400V By-Pass Capacitor
Dayton Audio DFFC-0.33 0.33uF 400V By-Pass Capacitor
Morel CAT 378 1-1/8″ Soft Dome Horn Tweeter
Gold 18-16 AWG 0.110″ Female Disconnect 5 Pair

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