When does speaker distortion become audible?

I'm kind of shocked no one seems to pay particular notice to the distortion at higher volumes (on almost all systems). Shirley, you realize that that distortion is not supposed to be there. Hel-loo!!

Frankly, don't call me Shirly (lol, that almost got posted wrong...the "r" is right next to the "t".

I've been trying to pick up on what you're saying, Geoff, but haven't heard it yet (which might be a blessing really).

I wonder sometimes if you got bat ears, Geoff, and I don't mean that as insult.

"According to Robert Lee of Acoustic Zen speakers operating at power higher than 10W can get 10-12% of distortion. Most of it comes from the woofer and is less audible."

I remember reading some posts a while back (a few years maybe) regarding the implementation of subs in a two channel system. Some claimed that inserting an external crossover or using the sub's internal crossover would dilute the signal path and therefore create unnecessary distortion. The counter argument claimed that a proper setup with a sub would do just the opposite and actually reduce distortion. Now I think I better understand the counter argument since the woofers generate as much as 10-12% distortion.