The mixer part of the PA10/4 and the PA12/6 does not have an output such as AUX SEND, so it cannot be used as it is.
Below is how to add a floor monitor or a subwoofer.
1. Get an analog main mixer with AUX output.
2. Connect the main output of the analog mixer to two channels of the PA10/4 or PA12/6 line input.
3. Connect the AUX output of the analog mixer to the "power amplifier + passive speaker" or the "powered speaker".
This is how to use PA10/4 and PA12/6 powered mixers as a power amplifier.
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