The monitor is practically brand new, someone did a lot of work to the cab before it reached my hands, the speaker might not have even been original to the cab. But if you take a look at the sheilded speaker, that magnet is HUGE compared to the other (and even yours). I think the magnets on these are small enough and mounted far away enough that they won't affect the monitor. I'll test it out tomorrow morning and let you know what happens.