There won't be any damage to the amplifier, just excessive bass roll-off and an increase in distortion.
Thanks. I'm not hearing it though. I think these MDR-V6's are the cats meow. I've got them on now and will do an A and B later.
Now that I know about them and their history, I'm amazed at how often they pop up in media. Music videos when somebody is in the studio.........artists, sound board people, news shows. The things are seemingly everywhere. I even saw some photos of Dr. Dre wearing them.