as Mike said,
it would help to know the model of your Mackie soundboard…
is this the same sound board as what the preacher is connected to??? if it is, you will probably be stuck with a line level output as it is probably directly connected to the speakers…
if you are using your own soundboard then…
you need to know if you camera will accept a “line” level signal or only a “mic” level signal. usually a switch on the camera near the xlr inputs
second, you need to know if the Mackie can output a “mic” level out some of them do I have three different models that have that capability (usually a small push button switch near XLR outputs).
give us the model number and what is connected to it and then we will be able to help you.
cheers,
Robert
