Ranger1000:

This is EXACTLY what happended to me that blew my right speaker a few weeks ago. I got another low-grade dose of it again yesterday when I fired up a DVD.

Fortunately, the past two episodes have been at low volume, so no damage done, but it is quite worrisome.
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Outlaw 970
McCormack DNA-125 (mains), Emotiva LPA-1 (surrounds)
Quad 11L (F&C) Wharfedale (R) LFM1 (Sub) w/ SMS-1
Squeezebox -> Behringer SRC2496 -> Musiland MD10 DAC
Sota Sapphire; Marantz 10B;
Video: Hitachi 42HDS52A; Oppo 971H
System Pics