Sennheiser RS185 Instruction Manual page 16

Putting the RS 185 into operation
14 | RS 185
Connection option B: RCA (analog)
B
Switch your audio source off before connecting the transmitter.
Connect the RCA plugs to the RCA inputs of the transmitter. Connect
the red RCA plug to the red RCA socket and the white RCA plug to the
white RCA socket.
Connect the RCA plugs to the RCA outputs of your audio source (in most
cases "AUDIO OUT"). Connect the red RCA plug to the red RCA socket
and the white RCA plug to the white or black RCA socket.
Analog
A U
D I O
O U
L
T
R