Remote Sensor, Few Precautions, Placement, Cables

RA-03Stereo Integrated Ampliﬁer

Remote Sensor 5

The Remote Sensor picks up the 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 light, particu- larly sunlight. Certain types of lighting, such as halogen lights, that emit a fair amount of infrared light, can also interfere with proper operation. In addition remote control functions may not work reliably if the batteries in the RR-AT94 are weak.

A Few Precautions

WARNING: To avoid potential damage to your system, turn off ALL the components in the system when connecting or discon- necting the loudspeakers or any associated components. Do not turn the system com- ponents 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-03 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 RA-03 shipping carton and all en- closed packing material for future use. Shipping or moving the RA-03 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 RA-03. 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-03 can be affected by its environment. Avoid placing the RA-03 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-03 generates heat as part of its normal operation. The heat sinks and ventilation open- ings 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 reason- able 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 RA-03 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 degrad- ing 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.

AC Power and Control

AC Power Input o

The RA-03 does not draw high levels of current from the power outlet. However, whenever pos- sible, 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 the current demanded by the RA-03 and all the other components connected to it.

Your RA-03 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-03 ampliﬁer to another country, it is possible to reconﬁgure it for use on a different line voltage. Do not attempt to perform this con- version yourself. Opening the enclosure of the RA-03 exposes you to dangerous volt- ages. 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.

Power Switch 2\ and Power Indicator 1

Press the front panel Power Switch 2button, to turn the RA-03 on. The Power Indicator light 1is illuminated when the RA-03 is on. Press Power Switch button again to turn the RA-03 off.

Once the RA-03 has been turned on with the front panel power switch, it can be switched between normal operating mode and standby mode with the Power button \on the RR-AT94 remote control.

See the “12V Trigger Outlet” section for more information on ways you may be able to turn on and off other components in your system along with the RA-03.

RA-03 specifications

The Rotel RA-03 is a high-performance integrated amplifier designed for audiophiles who appreciate great sound quality without compromising on convenience and style. As part of Rotel's extensive range of audio equipment, the RA-03 embodies the brand's commitment to delivering exceptional performance and durability.

One of the main features of the RA-03 is its power supply, which provides stable and reliable performance. The amplifier is powered by a robust Toroidal transformer, ensuring efficient power distribution and minimizing electrical interference. This design allows the RA-03 to produce a powerful output of 30 watts per channel at 8 ohms, making it suitable for driving a variety of speakers, from compact bookshelf models to more demanding floor-standing options.

The RA-03 boasts a range of connectivity options, including five line-level inputs, a record output, and a dedicated phono input for vinyl enthusiasts. This versatility allows users to connect multiple sources, such as CD players, streaming devices, and turntables, without needing additional equipment. The phono stage uses high-quality components to ensure accurate and noise-free playback of vinyl records.

In addition to its connectivity, the RA-03 incorporates advanced circuit design and high-quality components, contributing to its dynamic and detailed sound signature. The Class AB amplifier design contributes to a smooth, natural timbre, allowing listeners to experience music as the artist intended. The unit also features a sophisticated tone control system, providing users with the option to adjust bass and treble according to their preference.

Another notable characteristic of the RA-03 is its sleek and minimalist aesthetic, characterized by a brushed aluminum front panel and a simple, intuitive layout. The tactile knobs and buttons enhance user experience, making it easy to navigate controls. The clear LED display provides essential information, ensuring that users can monitor their settings at a glance.

The Rotel RA-03 stands out as a well-built, reliable integrated amplifier that delivers impressive sound quality. With its versatile connections, advanced circuitry, and elegant design, it represents an excellent choice for music lovers looking to enhance their audio experience, whether they're enjoying classic vinyl records or modern digital formats. The RA-03 exemplifies Rotel's dedication to creating exceptional audio products that cater to diverse listening preferences.