[DeTomaso] Large in Door Speaker Magnet Shut Off the Sound if it Touches the Door Skin?

[Dave McManus]

Ken, Does not sound right to me. (no pun intended) Years ago I used to build enclosures and cabinets for speakers. In my shop, I used to attach speakers to a metal storage cabinet by the magnet. I wired them and tested to make sure they worked. Never had an issue, ever.
IndyDave

-----Original Message-----
From: Ken Green <kenn_green at yahoo.com> 
Sent: Saturday, February 12, 2022 1:54 PM
To: Detomaso List <detomaso at server.detomasolist.com>
Subject: [DeTomaso] Large in Door Speaker Magnet Shut Off the Sound if it Touches the Door Skin?

Everything works until I firmly close and latch the door, then no sound even though the radio still on counting down time for a song?  It is hard to see the dynamics, but I suspect the speaker moves just enough for the magnet to magnetically attach to the door skin.  When the magnet attached to the door, it probably alters the magnetic field affecting the impedance of the speaker coil, and that may cause the radio to think there is a short and shut off the speaker signal.  Later it works again, until I shut the door.

I'm pretty sure it is not the speaker wires shorting out.

I'm thinking a layer of non-magnetic material between the speaker and door skin may fix it.
Has anyone seen this?
Thanks,
Ken