12
illuminate with all these steps, then please
purchased from or Sonance Technical Support:
Applicable to one or both paired channels, such
component providing line-level audio into the 8-50, such
as the second zone outputs on an AV receiver, a pair of
zone outputs of a multi-zone controller, music server,
Potential Reasons:
• A fault in the interconnect cable between the source
• RCA cables are plugged into the input on the source
•
• A fault in the speaker wire and/or its connections,
either at the Speaker Block Connector at the back of
•
• The DIP switches for the audio input selection are set
•
•
output to the speakers and the protection LEDs on the
If the protection LEDs are illuminated, proceed to step 6
IMPORTANT: BEFORE DISCONNECTING OR RECONNECTING
AUDIO CABLES OR SPEAKER CONNECTIONS, TURN
THEAMPLIFIER OFF. ONCE THE CONNECTIONS ARE REMADE,
THEN TURN THE AMP BACK ON. MAKING OR BREAKING LINE-
LEVEL RCA CONNECTIONS WITH THE AMPLIFIER POWERED
ON CAN DAMAGE THE AMPLIFIER AND/OR THE SPEAKERS.
Steps to Resolve
Check the line-level RCA interconnect cable and
Make sure the RCA plugs are pushed all the way into
cable or temporarily use one of the RCA cables from
Try the output of another source into the non-
Potential Reasons
• The most common reason is one speaker pairs is
positive, left channel negative, right channel positive
positive uses the red conductor, right channel
negative uses the black conductor, left channel
positive uses the white conductor and left channel
outputs of a second zone of an AV receiver, try the
zone 3 output or the variable output of a music
Examine the speaker wires inserted into the Speaker
into the connector without breaks, the wires being
loose or strands touching? Re-secure any suspect
wires, plug the connector back into the amp, turn the
Using a short run of speaker wire, connect a local
block connect back into the amp, turn the amp
is now producing audio, then there could be an
An alternative is to disconnect the Speaker Block
Connector from a known working zone and plug it
produce sound? If yes, then the wiring between the
an internal fault that for whatever reason is not
If the front panel zone LEDs are illuminated red,
If the protection LEDs remain on with the Block
the block connector is unplugged, then try step 4
yes, then there could be a short in the speaker wires
leading to the remote zone or the speakers have
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