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Connect the audio cables from your preamplifier’s output to the corresponding
input connector on the amplifier.
Connect the wires from your speakers to the appropriate outputs on the amplifier.
It is absolutely essential that you observe correct polarity in these connections.
Example:
If you connect your left front output of your preamplifier to channel 4 input
on the amplifier, remember to connect your left front speaker wires to channel 4's
outputs. Always observe polarity when connectin
g
speakers, connect amplifiers (+)
to the speakers (+) and amplifiers (-) to speakers (-).
Double check all connections.
Connect a playback unit (CD, VLD, Tuner, etc...) to the preamplifier. Turn the
volume on the preamplifier to minimum. Turn on the preamplifier, then the
amplifier (in that order). Set source on the preamplifier to the playback unit
you’ve just connected. Turn volume up slowly and music should be heard from
all channels. If this is not the case, double check your installation.
Should you encounter any problems that cannot be traced to the source or the
material being played, consult the “TROUBLESHOOTING” section on page 10.
Note: When turnin
g
equipment ‘off’, the amplifier should alwa
y
s be turned off first, then
the preamplifier. When turnin
g
equipment ‘on’, the preamplifier should alwa
y
s be turned
on first, then the amplifier. Before turnin
g
an
y
thin
g
on, ensure the preamplifier is at a
low volume level.

Control muting

A control is provided on each AV5125 amplifier to allow remote switching of mute on/off.
The preamplifier’s control output, such as is provided with B&K series preamplifiers, can
be utilized to provide a control signal to the AV5125. If more than one amplifier is being
controlled, the control signal can be extended to include each successive unit by simply
running a 3.5mm mini-jack cable from the CTRL OUT connector of the first amplifier to
the CTRL IN connector of the next unit (commonly referred to as ‘daisy chaining’). An
example of how to connect two amplifiers is illustrated in figure E.