Windows 7: how do magnetic fields affect Computers?

hey,

i have a fairly large sound system (15'' sub woofer included ) that i use for my computer.
the sub has a huge magnet, a good 15-25 cm wide 5-8 cm depth.
the sub is about a metre and a half away from the PC, so will the magnetic field affect it?

No more the the sonic vibrations. If both are well grounded and the wired shielded probably not. Why you would want to work on a computer 5 ft from a 15" sub is beyond me but hey im deaf from doing the same thing

nah i have really good hearing.
i dont have it up high very often, cheers.