Confirming the use of a RIFA snubbing component across 120V relay switch
After reading up on this, places like edaboard confirmed that the snubber I have is correct and should be placed across the coil leads (so the connection controlling the functioning of the coil, not the power leads driving the pre-amp and other equipment). I have soldered my RC snubber on the lead wires and will report back on any issues once it has been operating for a while.