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Joined: Dec 2002
Posts: 9,424 Likes: 1
Member
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Member
Joined: Dec 2002
Posts: 9,424 Likes: 1 |
In some locales any wiring above 50 volts has to be in conduit, thus 25 volt gets around that requirement. You just tap the speakers differently on a 25 volt line.
I think most PA/intercom systems use 25 volts instead of 70.
Could be that the speakers are mis-tapped.
Jeff Moss
Moss Communications
Computer Repair-Networking-Cabling
MBSWWYPBX, JGAE
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