Manual Rotel RA12 (page 8 of 13) (English)

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RA-12, RA-11 Stereo Integrated Ampliﬁer

Getting Started

Thank you for purchasing the Rotel RA-12/RA-11 Stereo Integrated

Ampliﬁer. When used in a high-quality music audio system, it will provide

years of musical enjoyment.

This ampliﬁer is a full featured, high performance component. All aspects

of the design have been optimized to retain the full dynamic range and

subtle nuances of your music. The unit has a highly regulated power

supply incorporating a Rotel custom-designed toroidal power transformer.

This low impedance power supply has ample power reserves, which

enables the ampliﬁer to easily reproduce the most demanding audio

signals. This type of design is more expensive to manufacture, but it is

better for the music.

The 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 circuitry uses metal ﬁlm resistors and

polystyrene or polypropylene capacitors in important signal paths. All

aspects of this design have been examined to ensure the most faithful

music reproduction.

The main functions of the RA-12 and RA-11 are easy to install and use. If

you have experience with other stereo systems, you shouldn’t ﬁnd anything

perplexing. Simply plug in the associated components and enjoy.

NOTE: The operations and feature of RA-12 and RA-11 are the

same. The illustrations in the manual use the RA-12 as an example,

but all sockets and buttons are the same on the RA-11.

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-12/RA-11 into your system as well as 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 shipping carton and all enclosed packing material for future

use. Shipping or moving the ampliﬁer 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 unit.

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, this ampliﬁer

can be affected by its environment. Avoid placing the unit 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 unit generates heat as part of its normal operation. The heat sinks

and ventilation openings in the ampliﬁer are designed 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 installation location, to prevent the ampliﬁer from

overheating.

Remember the weight of the ampliﬁer when you select an installation

location. Make sure that the shelf or cabinet can support it. We recommend

installing the unit 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.

The RR-AX91 Remote Control

Some functions can be done with either the front panel controls, or

the supplied RR-AX91 remote control. When these operations are

described, the square call out numbers refer to the main unit, while the

encircled letters refer to the remote control.

Second Ampliﬁer Remote Code

The factory setting is remote code 1. If you ﬁnd that the remote is

conﬂicting with other Rotel ampliﬁers, you can change to remote code

2 with the following steps.

1. From the remote control press Tuner

and 2

at the same time

to set the remote control to send Audio Code 2.

2. Point the remote at the unit and press 2

key for 5 seconds. The

unit will show ‘Audio Custom Code 1 -> 2’.

3. Repeat the above procedure and press ‘1’ key instead of ‘2’ to

change the unit back to Code 1.

NOTE: The remote control can be used to operate the basic functions of

Rotel tuners and CD players. Remote control keys labeled

HMJK

can be used to operate CD or Tuner functions in your system. For the

remote to operate properly, make sure both the remote and the CD or

Tuner are both in same remote code, either Code 1 or 2.

AC Power and Control

AC Power Input

The unit does not draw high levels of current from the power outlet.

However, whenever possible, it should be plugged directly 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) can handle

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Rotel RA12 Manual

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