Effects of magnetic fields

Yes I thought so. I was told today by Chris at Legacy Audio that when they ship speakers on an Airplane by law they must be 18 inches from certain parts of the aircraft because of the magnetic field. Also I notice the performance of my Audio Magic Eclipse PLC seems to waiver if its in too close in proximity to large woofers. Also my speakers tend to sound better if they are spead apart further than conventional suggestions. Could it be because when they are spead out , they are further from my electronics ? Interesting.

Albert is their any way to easily measure it ? Do not know too much about it , except I believe the positive magnetic field generally moves forward, the negative , backwards , as in the back of the speakers, is that correct ? I wonder, in the context of how my equipment always seems to sound different depending upon where it is placed in my room . Trying to do Audio and Video, their are so many variables . Thanks !

Thanks for the response. Yes I have heard of the Texas Instruments shield and of course mu-metal. Since my listening room is small and I have many toys including Legacy Sig III's , 2 subs , and a zillion power cords I may be in a magnetic jungle.