MBL 311C4 woofer replacement - Help to identify which woofer to use

[bitinhvi]

Hi,

I want to replace woofer driver on my MBL 311C4 speaker, but could not identify what the driver it is.

It is a 5 inch mid bass driver, dual voice coil, probably made by Dynaudio, Mid driver is Dynaudio D52AF and tweeter is Dynaudio D21/2, so I think that.

Thanks a lot.

 

[globalplayer]

It`s unlikely you will get them new.
I don`t know if I would want them used.
But here`s a replacement which should work:

MONACOR - SPH-135TC

The crossover probably needs some tweaking though.

 

[bitinhvi]

Thank you GlobalPlayer, I try identify the original driver first, used one but in working condition is ok.

But noted your information for future use if really cannot find original one.

 

[bitinhvi]

My woofer also be used in other MBL speaker model MBL 300C or MBL 321. Hopefully someone know and share information.

Thank you.

 

[bitinhvi]

Finally found out my woofer is a old Focal 5N402db. But seem difficult to find replacement.

 

[bitinhvi]

Update status a bit. After could not find original Focal, I could managed to repair the woofer, luckily just a minor issue with coil alignment.
However, I finally decided to adding more woofer to my bookshelf to extend its LF. Really love the sound now.

 

[Cal Weldon]

Nice to hear you like the addition.

 

[bitinhvi]

Thanks Cal Weldon, the additional woofer is actually a passive subwoofer using 12" Peerless drivers. It is big black box below the bookshelf. I connect it using existing crossover inside the bookshelf.