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Joined: May 2014
Posts: 7
Member
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OP
Member
Joined: May 2014
Posts: 7 |
Hi
We just replaced a very old amp with a Bogen TPU100B. The amp is used for paging, night ring and alarm system. Moved over the paging and night ring with no issues. The alarms system is connecting to a Link Passive Direct Box where it connected to the microphone ports on the old amp using what looked like an RCA jack. I cut off the RCA jack and connected the wires to the microphone connection, tested the alarms and worked. We found soon after that there is a constant low static coming thru the speakers. When I remove the alarm connection, it goes away. Not entirely sure how to resolve so looking at the experts for advice.
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