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The RC-1550 printed circuit boards (PCB) are designed with
Symmetrical Circuit Traces. This insures that the precise timing of the
music is maintained and faithfully recreated. The RC-1550 circuitry
uses metal film resistors and polystyrene or polypropylene capacitors
in important signal paths. All aspects of this design have been
examined with the final goal being faithful reproduction of music.
The RC-1550 is straightforward in its installation and operation. If you
have experience with other stereo systems, you shouldn’t find anything
perplexing. Simply plug in the associated components and enjoy.
A Few Precautions
Please read this manual carefully. It provides complete information on
how to incorporate the RC-1550 into your system as well as general
information 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 questions and
comments.
Save the RC-1550 shipping carton and all enclosed packing material
for future use. Shipping or moving the RC-1550 in anything 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
RC-1550. 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 RC-1550
can be affected by its environment. Do not stack the RC-1550 on top
of a power amplifier. This will minimize chance it will pick up hum
or interference. We recommend installing the RC-1550 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 picking
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.
Remote Control
The RC-1550 includes an RR-AT94 remote control that operates many
of the controls of the RC-1550. In addition, the remote operates
basic features of some Rotel CD players, DVD players, and AM/FM
tuners. See the “Audio Controls” and “Controlling Other Components”
sections of this manual for detailed information.
Remote Sensor
2
The remote sensor receives infrared signals from the remote control.
Do not cover or block the sensor. It must be unobstructed or the remote
control will not work properly.
The operation of the remote sensor can also be affected if it is exposed
to bright sunlight or certain types of lighting (such as halogen lights)
that emit infrared light. In addition remote control functions may not
work reliably if the batteries in the RR-AT94 are weak.
Note: To use the remote, aim it at the remote sensor on the front panel
of the RC-1550.
Remote Control Batteries
Two UM-4/AAA size batteries (supplied) must be installed before
the remote control can be used. To install the batteries, remove the
cover on the back of the RR-AT94. Install the batteries as shown in the
illustration in the battery well. Test the control for proper operation,
then replace the cover. When the batteries become weak the remote
control won’t operate the RA-1520 consistently. Installing fresh
batteries should eliminate the problem.
AC Power and Control
AC Power Input
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Note: Be sure to set the Volume control to the minimum (full
counterclockwise) position before connecting the power cord.
Connect the supplied power cord to the AC Input receptacle on the
rear panel. Do not connect the power cord to the power outlet until all
the audio input and output connections have been made.
It is usually best to plug the RC-1550 directly into a 2-pin polarized
wall outlet. Avoid the use of extension cords. 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 components connected to it.
Your RC-1550 is configured at the factory for the proper AC line
voltage in the country where you purchased it (either 120 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 rear panel.
Note: Should you move your RC-1550 amplifier to another country,
it is possible to reconfigure your amplifier for use on a different line
voltage. Do not attempt to perform this conversion yourself. Opening
the enclosure of the RC-1550 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 components) while
you are away.