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Caution! NEVER connect power amplifier outputs to any component
other than a loudspeaker.
NEVER short-circuit power amplifier outputs.
NEVER connect power amplifier outputs to another power
amplifier’s outputs.
For best performance, use high-quality loudspeaker cables. To
connect these cables, use a high-quality spade or hook lug
soldered to the cable or crimped to the cable with extremely
high pressure.
• Connect the + (positive) binding posts on the Nº432/431
to positive inputs on the associated loudspeaker.
• Connect the – (negative) binding posts on the Nº432/431
to negative inputs on the associated loudspeaker.
Spade Lug
Hook Lug
Caution! DO NOT OVERTIGHTEN the Nº432/431 binding posts. The
innovative design of these binding posts provides more leverage
than more traditional designs. Tight, high-contact pressure
connections can be achieved with finger-tightening. Special
tools are not needed.
DO NOT FORCE the Nº432/431 binding post “wings” up and
over a bent or oversized connector. Doing so may result in
binding post damage. If the connector obstructs “wing”-turning,
slide it into place when the binding post opening provides a
snug fit. Then, use quarter-turns to tighten the connection as
needed.
3. Unbalanced Input
Provides left and right-channel audio input. One stereo RCA
connector is available to accept unbalanced input signals from
an associated preamplifier. These signals are converted to
balanced signals upon receipt, and processed as balanced
signals thereafter.
If the associated preamplifier does not support balanced
connections, connect the RCA output on the preamplifier to
the RCA input on the Nº432/431. To reduce the chance of
noise at the (otherwise un-terminated) inverting XLR input,
insert the supplied U-shaped shorting-straps between pins 1
and 3. (These shorting-straps are installed when the
Nº432/431 is shipped.)