Make sure it is not the speaker coil by using a battery - the cone will move. Or simply swap it with the other one. I actually replaced the bass units on my S120s with new Peerless ones some years ago before coming to Beoworld.

Thanks Peter

Just put a multimeter across the terminals and got nothing, so assume it's a fault in the crossover. Is this a capacitor problem?

What did you test for? Not sure you have ruled out the speaker coil being fried. Have a look at the crossover by all means - it is easy to get hold of. It would be no surprise if the capacitors need replacing but they tend to affect the tweeters, not the woofer. If you look at the circuit diagram, there isn't really a capacitor to cause any mischief.

No Peter - I just connected the speaker up to the Beomaster, and when playing I placed the multimeter across the terminals with the spade connectors still in place. I'll try with a battery to check the coil. Will anything do, like, say a 1.5v cell?

I think it is suggested that you use a 9V battery , but only for a second or so. Do the other drivers work? The only thing in series with the woofer is a coil. I suppose that may have a problem. You will need to check each component.

The other drivers work. I'll try with a 9v battery and report back!

UPDATE:

Just tried the woofer connected to the crossover in the other speaker - it is fried. What do I do now? I have two woofers with foam rot, and one has a toasted coil. Any suggestions??

You need to replace both woofers.

Peter wrote:

You need to replace both woofers.

Just ordered two replacements this morning - anyone want one dead and one working 8 inch Peerless woofers, both with foam rot?