As you can see in my setup video on You Tube, my L1 Compact was positioned within easy reach of my stool. If you failed to turn down the volume on the announcement mic, even the Samson Q7, which was very resistant to feedback, there seemed to be a looping problem when you resumed playing and singing through the keyboard. It only took me a few seconds to figure this out.

Good luck,

Gary cool
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)