Step 1 ‐ Unbox the new amplifier (fig 1) – Set the new amplifier near the old amplifier.
Step 2 ‐ Take a picture of the back of the existing amplifier to log the output connections.
Step 3 ‐ Remove the RCA Input connection from the old amplifier – Move it to the RCA Input of the new amplifier.
This RCA male‐to‐male cord connects to the Red RCA female from the music unit.
Step 4 ‐ If connecting the 70v output to the new PCM30A amplifier, the far back right screw terminal for the 70v will be
the "positive wire," and the screw terminal next to it will be the COM "Negative" you will use.
Keep in mind there are multiple COMs. You will need to use the COM nearest to the 70v on the far back right side of
the amplifier.
Step 5 ‐ Once these two connections are complete, and the input and output on the new amplifier are verified
connected, look for a Switch on the back of the Amp near the Red/White input. It must be switched to AUX Position.
The Front of the amplifier will have a Volume knob labeled MIC2/AUX. This volume controls the input music to the
speakers. Normally you will want to set it to a 3 or 4 as to not have the music too loud.
After this is complete, you can plug the power in on the amp and turn the power button into the ON position. – If you
do not hear music, you may need to adjust the volume or the music source may not be on at this time.
For issues please call tech support with United Media Solutions at 800‐373‐8200 Opt 2
Installing a new Amplifier PCM30a
For music
input feed
Box Speakers Setup
COM
8 ohm
Standard Setup
70V
COM
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