Looper slot Boss RC3 looper connection

  • I have the Boss RC3 in the X slot with a mono looper. Everything works as long as I have the Boss connected. When I disconnect (when I'm playing on stage I don't use the Boss) the signal is either lost or boosted ,attenuated depending on the mix ratio of the looper slot. When I set the mono looper to off (in the KPA) the signal from my guitar is being doubled. Logical because the send is also a direct output.....is there a way to mute the send when I set the looper slot to off?