I have an older pair of Alesis Monitor One monitors. Unfortunately, they are unshielded. I currently have them about 1 1/2 ft away from my computer monitor and right one is about the same distance above my computer tower. Should I be concerned?

Hey there people..
I have a great pair of mini monitors that i want to use close to the monitor. however they are not shielded!
so have you any ideas how i could make the monitors shielded? so that i can use them close to my monitor.
I'm assuming that i have to surround the magnet some how..
cheers for any replies!

Hi!
I have a question: I'm planning to buy a pair of monitors for my project studio at home. Since the space is limited one of the monitors will be very close ( less than 40 cm) to my video monitor. Do I have to buy video shielded monitors, or can I buy non-shielded monitors and do something to make it work ?