A Few Precautions; Ac Power And Control; Ac Power Input; Input Signal Connections - Rotel RA-971MKII Owner's Manual

A Few Precautions

WARNING: To avoid potential damage to your system, turn off ALL
the components in the system when connecting or disconnecting
the loudspeakers or any associated components. Do not turn the
system components back on until you are sure all the connections
are correct and secure. Pay particular attention to the speaker
wires. There must be no loose strands that could contact the
other speaker wires, or the chassis of the amplifier.
Please read this manual carefully. It provides information on how
to incorporate the RA-971MKII into your system as well as infor-
mation that will help you get optimum sound performance. Please
contact your authorized Rotel dealer for answers to any questions
you might have. In addition, all of us at Rotel welcome your ques-
tions and comments.
Save the RA-971MKII shipping carton and all enclosed packing
material for future use. Shipping or moving the RA-971MKII in any-
thing other than the original packing material may result in severe
damage to your amplifier.
Fill out and send in the owner's registration card packed with the
RA-971MKII . Also be sure to keep the original sales receipt. It is
your best record of the date of purchase, which you will need in
the event warranty service is ever required.
Placement
Like all audio components that handle low-level signals, the
RA-971MKII can be affected by its environment. Avoid placing the
RA-971MKII on top of other components. Also avoid routing audio
signal cables near power cords. This will minimize the chance it
will pick up hum or interference.
The RA-971MKII generates heat as part of its normal operation.
The heat sinks and ventilation openings in the amplifier are de-
signed to dissipate this heat. The ventilation slots in the top cover
must be open. There should be 10 cm (4 inches) of clearance
around the chassis, and reasonable airflow through the installa-
tion location, to prevent the amplifier from overheating.
Remember the weight of the amplifier when you select an installa-
tion location. Make sure that the shelf or cabinet can support it.
We recommend installing the RA-971MKII in furniture designed to
house audio components. Such furniture is designed to reduce or
suppress vibration which can adversely affect sound quality. Ask
your authorized Rotel dealer for advice about component furniture
and proper installation of audio components.
Cables
Be sure to keep the power cords, digital signal cables and regular
audio signal cables in your installation away from each other. This
will minimize the chance of the regular audio signal cables pick-
ing up noise or interference from the power cords or digital
cables. Using only high quality, shielded cables will also help to
prevent noise or interference from degrading the sound quality of
your system. If you have any questions see your authorized Rotel
dealer for advice about the best cable to use with your system.
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STEREO INTEGRATED AMPLIFIER RA-971MKII

AC Power and Control

AC Power Input

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Because of its relatively high power rating, the RA-971MKII can
draw considerable current. Therefore, it should be plugged di-
rectly into a 2-pin polarized wall outlet. Do not use an extension
cord. A heavy duty multi-tap power outlet strip may be used if it
(and the wall outlet) is rated to handle the current demanded by
the RA-971MKII and all the other components connected to it.
Your RA-971MKII is configured at the factory for the proper AC
line voltage in the country where you purchased it (either 115
volts AC or 230 volts AC with a line frequency of either 50 Hz or 60
Hz). The AC line configuration is noted on a decal on the back
panel.
Note: Should you move your RA-971MKII amplifier to another
country, it is possible to reconfigure it for use on a different line
voltage. Do not attempt to perform this conversion yourself. Open-
ing the enclosure of the RA-971MKII exposes you to dangerous
voltages. Consult a qualified service person or the Rotel factory
service department for information.
If you are going to be away from home for an extended period of
time such as a month-long vacation, it is a sensible precaution to
unplug your amplifier (as well as other audio and video compo-
nents) while you are away.
Power Indicator and Power Switch
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Push in the Power Switch button to turn the RA-971MKII on. The
Power Indicator light is illuminated when the RA-971MKII is on.
Press and release the Power Switch button again to turn the
RA-971MKII off.

Input Signal Connections

[See Figure 2 for input connection illustration.]
The RA-971MKII has conventional RCA type input connectors, the
type found on nearly all audio equipment.
Note: To prevent loud noises that neither you nor your speakers
will appreciate, make sure the system is turned off when you
make any signal connections.
All the inputs of the RA-971MKII are "line level' inputs. These are
appropriate for connecting components such as CD players, Hi Fi
or NICAM Stereo video cassette recorders, tuners for audio or
video, Laser Disc players or the analog output from a CD ROM
drive. If you want to use a phonograph with the RA-971MKII, an
external phono equalizer, such as the Rotel RQ-970BX must be
used.
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