Jeff Rowland Design Group 312 - Manual (Page 10)

© J e f f R ow l a n d d e s i g n g R o u p 2 0 07. a l l R i g h t s R e s e R v e d .
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• Do not expose the amplifier to
rain, moisture, or excessively
damp conditions.
• The Model 312 Stereo Amplifier
must not be modified in any way,
other than according to official
service bulletins from JRDG.
Otherwise, the factory warranty
will be immediately voided.
• The Model 312 Stereo Power
Amplifier can be operated at a
nominal 100, 120, 220, or 240
volts AC. The amplifier must be
configured for the correct AC input
voltage before operation or serious
damage will result.
• Be sure the amplifier is unplugged
from the AC mains wall plug (front
panel indicator light OFF) before
connecting or disconnecting any
loudspeaker or interconnect cables.
• When operating the Model 312, a
properly grounded AC receptacle
should be used. A potential shock
hazard may result if the supplied
3-wire, grounded AC cable ground
terminal is defeated or lifted or
the unit is connected to a 2-wire
ungrounded AC outlet.
• The output terminals or loudspeaker
cables should never be shorted to
each other or to any chassis surface.
Shorting of the outputs may result in
damage to the output section of the
amplifier.
• The Model 312 is designed to per-
form optimally with no adjustments
or maintenance for the lifetime of the
product. Do not attempt to open the
bottom cover of the amplifier and
refer all service issues to qualified
personnel. The voltages inside the
Model 312 can be hazardous.
The JRDG Model 312 Stereo
Amplifier has been designed to
operate at the highest level of
efficiency and performance in
any normal operating situation;
however, there are a few impor-
tant use and care principles
that must be kept in mind when
operating the amplifier.