Device rear
A Optical digital input (Optical In)
B Optical digital output (Optical Out)
C Network port (LAN)
D Analogue audio output (Line Out)
E Preamplifier output (Pre Out)
F Subwoofer output (Sub Out)
G Analogue audio input (Aux In)
H Trigger output (Trigger Out)
I USB port
J HDMI ARC
K Power socket
Labels A to K in the device illustration correspond to the described connections on the rear of the device.