I am not at a mixer but basically. Go to layer 3. Make sure all but first 3 faders are up to 0. Go back to layer 1. Turn mic 1 up till you have sound. Press FX1 on right side. All faders should go down. Bring fader 1 up. You should have something like reverb if that is on fx1. Check back panel settings on FX page for that effect. Make sure set to fx1 and not a mix buss. That should work.