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Old 03-23-2015, 11:21 PM
thiel2 thiel2 is offline
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Join Date: Apr 2013
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Well, if you want to jury rig it, get a Valcom V-1030C 5-Watt self amplified horn and a matching power supply. Open up the phone, and solder onto the leads of the speaker that sits underneath the handset. That becomes the input to the horn, but every time you use the speakerphone of the telephone, it will come through the loudspeaker.

Otherwise, you need a line/trunk port on the Magix (Legend? what system is your 4424 connected to?), run to the LS trunk input of a Bogen UTI-1 and connect a Bogen self amplified speaker to the output. The UTI supplies the power for the speaker. You just need a spare pair from the control unit to the UTI's input.