"Engineer" 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.

Bullet-proof speaker protection is difficult because a high amplitude short
duration overload can damage the speaker mechanically, whilst a sustained
high-level signal, well within the speaker's mechanical limits, can cause
thermal overload.

The answer is to always keep the volume setting below that at which audible
distortion is present!

David.