Hi,
Real80sman is correct. It would be impossible for the EP500 at that distance to cause magnetic interference to a CRT set, because the inverse square ratio law applies. All this means is that when you start moving a source of magnetic interference away from the CRT set, the magnetic field dissipates extremely rapidly.
In all my experience with large unshielded floorstanding speakers and subwoofers close to a CRT, a separation of 2 to 3 feet from the speaker or subwoofer and the CRT set completely removes the interference.
I also have a gut feeling that there may be a ground-loop issue operating between the Outlaw, the Sony CRT, your cable-TV input and the subwoofer.
Have you tried using a ground-isolation transformer between the cable input and your set-top box? Try disconnecting your cable-TV input from the box and see if the issue with the subwoofer disappears. . .
Regards,
