Strangely enough, I think you might have some kind of grounding problem. Perhaps the chassis ground on the Outlaw is the ground/external contact on its output RCA socket. If it is not buffered, any switching in the control functions could generate a small voltage spike on the chassis which then gets transmitted through the interconnect to the input circuit on the Chiro. Maybe the Denon is buffered or dedicated to the signal path, so this doesn't happen. By the way, are all your components grounded through the power plug? (Versus defeated ground plugs?)
I'm not sure what to do about it. Obviously, you could send the Outlaw and Chiro back to their respective manufacturers for a check up and rewiring to buffer the grounds. This is clearly a last resort.
One thought is to try carefully to ground the Outlaw and Chiro chassis together. I mean like, wrap a wire around a chassis screw on one, then attach the wire to the other. There shouldn't be any real voltage difference between the two chassis, but it's not without some risk if we suspect grounding issues. I would check to see if there is any meaningful voltage by putting my hand on one chassis and my other hand on the other chassis. If I feel a little vibration under my fingers, then there may be a voltage difference and I would think twice about wiring them together. If not, I would continue and check to see if there is any little spark to the wire before completing the attachment. This procedure might help mitigate the switching voltage spiking.
Good luck.
I'm not sure what to do about it. Obviously, you could send the Outlaw and Chiro back to their respective manufacturers for a check up and rewiring to buffer the grounds. This is clearly a last resort.
One thought is to try carefully to ground the Outlaw and Chiro chassis together. I mean like, wrap a wire around a chassis screw on one, then attach the wire to the other. There shouldn't be any real voltage difference between the two chassis, but it's not without some risk if we suspect grounding issues. I would check to see if there is any meaningful voltage by putting my hand on one chassis and my other hand on the other chassis. If I feel a little vibration under my fingers, then there may be a voltage difference and I would think twice about wiring them together. If not, I would continue and check to see if there is any little spark to the wire before completing the attachment. This procedure might help mitigate the switching voltage spiking.
Good luck.