I have no doubt it’s an unfortunate sub vendor’s bad batch of switches and Kemper will sort it out. It’s s till the best sounding digi-amp and I have faith. Then I’ll pick up a Stage again. Until then, I’m exchanging for another rack profiler for backup. I was really looking forward to the Stage parallel controlling the rack as backup. Im not sure it can, though. Never got there. Kemper will resolve this. Hopefully they pulled any unsold units with these switches. If I knew they sourced a compatible, better military grade switch, I’d order them all and replace them.