In article , Dave Plowman (News)
wrote:

I was more hoping someone could come up with why some of these
crossovers squawk, but some not.

I guess that we can't say much more than the obvious. i.e. that something
is different between examples of amps and crossovers/speakers! Not exactly
news for you. :-/

I've never seen an AM8/16 so have no idea what changes the BBC people may
have made. I can't tell if the 'quawk' is due to a protection circuit
rattling on and off, bursts of RF instability, or what. Might be fixable by
a bigger output inductor or a cap in just the right place. But where?...

Ideally, you'd be best asking in some place were ancient BBC engineers are
listening. But again, I'm not sure where to suggest!

Jim

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