QUOTE(bburl @ Jun 24 2008, 00:28)

I'm sure this has been asked before, but I couldn't find it in my searches...
Can the clipping caused by loud mastering damage audiophile speakers/headphones?
Thanks for any insight.
Yes, digital clipping can certainly damage speakers and headphones. However, as long as you are using them within spec, there is no need to worry. I can't see that "bad" music would cause slow degradation of speakers - it would generally cause either complete death or nothing.
There are three mechanisms to consider:
- Increasing high frequency energy. As you introduce more and more clipping, the power in the higher frequency distortion products relative to the power in the fundamental increases. Because tweeters generally have much a much lower ability to handle power than woofers, these distortion products can cause tweeters to blow. Of course, the digital clipping picture is different from amplifier clipping - the frequency content (amount of clipping) doesn't change when you wind up the volume knob.
- Increasing offset. Assymetric clipping can cause a DC offset to appear on the output of some amplifiers. This can increase distortion and lead to failure of woofers (or even tweeters in systems with line level crossovers).
- Increasing total power. Compressed/clipped music might save your tweeters here. Decreasing the headroom means that the transients are much lower in power compared to the total power, and will therefore be lower in power for a similar overall listening level. This could save your tweeters at parties.
In conclusion. As long as you keep listening levels within specs, and are a little careful with the volume knob, you shouldn't really worry.