Can anyone who owns a pair of sony mdr 7506 also own a gaussmeter(or some sort of device to detect magnetic fields) measure the strength of the magnetic field at the ear cups of the headphones? Thanks

Does anyone who has a gaussmeter or other device for measuring magnetic fields have a reading on the sony mdr 7506's magnetic field(at the earcups) Thanks

I bought a pair of mdr 7506 for 109$ but when I opened it up I found that the bag was fabric with a felt inside and a black embossed sony logo instead of the white one on a leather bag most people say they have, this is my first pair of mdr 7506 so I cannot tell if the sound is supposed to sound...