Back in an earlier life I had 4 stacked Advents. My cat at the time, Tony, thought the grillcovers made great scratching posts. One time I absent mindedly left the the covers off and he decided the woofers felt pretty good on his claws. Those woofers had weak foam surrounds anyway. When I turned the stereo on the woofers broke free. Didn't sound too good. My present cats have never shown any interest whatever in destroying my stuff.
Animal damage to system
After a hard day of work all I wanted to do was relax and watch a movie. I was 2 seconds into the movie and the protection circuit of the receiver activated. Come to find out that the cat had chewed all 3 of the front speaker cables, 1 phone line and 2 coax cables. What kind of damage have you experienced with animals and your system?