Good info, But I stand behind in what I posted and from hands on from all these years(14). If you hear distortion your leading your speaker to premature death. Thats were we get the saying. I have about 30 blown subs just sitting here because of cutomer clipping there amp. I have a customer jl audio 1000/1 amp that blew a brand new w7 from clipping. The amp motor boated so bad that when hooked up it spits out 40 volts out the speaker outputs and does not show signs of being blown till it powers up and pops your speaker. If you look at most componets speakers that are high-end. There is a lamp in the x-over to burn off the dc voltage.

My thoughts and what is true is that distortion does increase power and with the clipping (dc to speaker) And the speaker moving beyond its mechancial limits. Causes the speaker to fail. Number one problem from the begining is a bad install. Wrong power wire, bad ground. Bad system planning, ie. rms not matching up