@restorer-john brings up a good point, though again this discussion is way off-topic IMO. I did not consider amplifier (in)stability in my clipping article because I consider it a separate issue. High-frequency oscillation will almost certainly destroy a tweeter, clipped or not, almost instantly. Things like "motor-boating" and other lower-frequency instabilities can blow out other drivers. Heck, a full-power turn-on surge ("pop") can do some damage!
You may not have to overdrive an amplifier to have it oscillate; the wrong load (speaker impedance) can do it. It is also worth noting that clipping is not always as clean as my article indicates; some amplifiers will "fold back" or generate otherwise very ugly asymmetric waveforms (
@amirm has shown examples before), and some will break into oscillation when clipped. My article only addresses a well-behaved amplifier that is overdriven resulting in a clipped output. Alas, not all amplifiers are so well behaved.
As
@Julf said, part of the work Bruno
et. al. did was to develop a thorough understanding of feedback and how it is applied, and misapplied, to make amps like the Purifi models well-behaved.
IME/IME/etc. - Don