:confused:I've recently built my own HT subwoofer and I'd like to use it with my 61" Samsung LED DLP. I'd probably sit it behind the TV, maybe 3-4 feet away from the back of it. Will the magnet interfere with the TV? I'd rather not ruin the TV!

The magnetic field shouldn't matter but that kind of vibration likely will affect the display. Kinda like a billboard or sign gettting pelted constantly by a dust devil! :D