"Rob" wrote in message

On 11/09/2010 09:46, David Looser wrote:
wrote

I think it's only the tweeters that are wrecked by
cheap, clipping amplifiers


It is. When an amplifier is driven into clipping the
high-order harmonics increase significantly and can
damage the tweeter. This is no myth, it has happened
many times.

What's the symptom of the damage? As post below (Speaker
Imbalance), I'm suffering a 'quieter' HF unit. I'd have
thought it's all or nothing?

Loss of efficiency is a possible failure mode. I've definately seen and
heard it happen. One scenario is where the voice coil is overheated, the
insulation swells and causes partial sticking of the voice coil.