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7
Installation Considerations
The Nº432/431 requires special care during installation to ensure
optimal performance. Pay particular attention to the precautions
included in this section and to other precautions included
throughout this owner’s manual.
Placement • DO review “Important Safety Instructions” and “Power
Requirements” before installing the Nº432/431.
• DO place the Nº432/431 on a solid, flat, level surface such as
a table, shelf, or floor OR bolt the Nº432/431 into a rack-
mounting system. Use a purpose-built rack-mounting system
to accommodate the weight of the power amplifier. Refer to
“Rack-Mounting” for additional information.
• DO position the Nº432/431 close to associated loudspeakers
to keep loudspeaker wires as short as possible. Use longer
interconnecting cables between the preamplifier and the
power amplifier. This is preferable because interconnecting
cables pass low-voltage signals, which transmit over distances
with greater accuracy than the high-voltage signals required
by loudspeakers.
• DO allow at least a 6-inch (15cm) clearance behind the
Nº432/431 for the power cord and signal cables to bend
without crimping or straining.
• DO refer to “Dimensions” for assistance with custom
installations.
• DO NOT position the Nº432/431 near low-level compo-
nents. These power amplifiers are capable of producing mas-
sive output currents, which could generate significant magnet-
ic fields that induce noise in some sensitive components.
• DO NOT place the Nº432/431 on a windowsill or in another
location in which it will be exposed to direct sunlight.
Caution! Before moving the Nº432/431, make sure it is powered off with
the front panel power button. Then, make sure the power cord
is disconnected from the ~ac mains connector and the electrical
outlet. Do not attempt to move the Nº432/431 without adequate
assistance. Proper lifting requires at least two people.