Sonos Multi-Room Music System User Manual page 44

Chapter 2: System Setup
Analog audio out
(fixed/variable)
Analog audio in
Subwoofer output
Note: If you disconnect your
subwoofer, make sure to also
disconnect the subwoofer's cable
from the ZonePlayer output.
Use a standard RCA audio cable to connect the
ZonePlayer's analog audio outputs to the audio inputs
on a separate audio component, such as an amplifier or
your home theater receiver.
Use a standard RCA audio cable to connect the audio
outputs from a separate audio component such as a CD
player, to the ZonePlayer's analog audio inputs.
Connect a powered subwoofer to this output using a
standard RCA cable. The system will detect when a cable
is connected to the subwoofer output and adjust the
crossover frequency automatically.
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