I would like to record my band class daily so that we can quickly and easily listen to how we sound after. I don’t want what is picked up by the microphone to be carried through the speakers when we are recording. The setup is pretty basic but it may be wrong for what I’m trying to do. My stereo mic is hooked into channels 1&2 and my speakers are hooked via xlr into the main output. Do my speakers need to be hooked into the control instead?