"Jim Lesurf" wrote in message
...
In article , David


Thank you Ken, that's fantastic. I'll have a listen to see which speaker
has blown (assuming it is a speaker), but at least it's not stereo so
only need to replace one. Will let you all know how I get on.

Erm... You now say *assuming* it is a speaker. Whereas you initially said
it *was*.

What are the actual symptoms, and what makes you think it is a *speaker*
as
distinct from, say, a broken wire in the unit or a blow amp (or its fuse)
or various other possibly problems?


I'm not 100% that it's the speaker but it sounds like a bass drive unit
fault. It buzzes at certain frequencies. The drive units still work. I'm
not sure how to diagnose what it actually is without replacing various bits.

I'll have a listen tonight to see if I get a better idea.
How would I tell whether it's an amp or speaker problem?

Thank you

David