Doesn't seem like a concern at all, to me, in the context of an audio system.
The key distinction with respect to the situations you mention about shipboard equipment being that in the audio application the frequencies involved don't radiate through the air (at least to any degree that is remotely significant, considering the power levels that are involved), while of course radio frequencies do.
Regards,
-- Al
The key distinction with respect to the situations you mention about shipboard equipment being that in the audio application the frequencies involved don't radiate through the air (at least to any degree that is remotely significant, considering the power levels that are involved), while of course radio frequencies do.
Regards,
-- Al