Linnenberg WIDOR Owner's Manual page 5

WIDOR offers a balanced input, because a
properly implemented balanced connection
will offer higher sound quality than a single-
ended connection. The amplifier can be driven
by a preamplifier or directly from a line – level
source that has a volume control.
Connect your loudspeakers to the amplifier. The
speaker cable can be connected via spade
plugs or via banana plugs. Avoid speaker
cables with excessive capacitance. As with any
other high speed amplifier, such cables can
lead to instability. If in doubt, please consult your
speaker cable manufacturer. Now, before
turning the amplifier on, make sure that all
cables have been connected firmly and in
correct polarity.
Never attempt to ground the negative
!
binding post, as this is an active output.
Doing so will short one half of the amplifier
and damage may occur.
Operation
With the speakers and the source connected,
switch the rear mains switch to (1) = ON and
press the front panel push button to activate the
amplifier. The red LED will come on. After
switching to operating mode the protective
circuits take 10s to check all circuits of the power
amplifier before enabling the speaker outputs.
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