Thanks for reply. I will investigate the "Auto Sensing" feature you mentioned. I may not even need the trigger cable; especially since I understand Axiom has redesigned the amps for V4. I will email them and post answer here later.

Dave

M60v3, VP100v3, QS8v3, EP350v4, Onkyo TX-NR905

M22v2, Vector Research VRX-9000 stereo

AxiomAir