User manual ROTEL RA-1412

[. . . ] If the unit is exposed to moisture, or a foreign object gets into the enclosure, immediately disconnect the power cord from the wall. Take the unit to a qualified service person for inspection and necessary repairs. Read all the instructions before connecting or operating the component. Keep this manual so you can refer to these safety instructions. [. . . ] This will minimize the chance it will pick up hum or interference. The RA-1412 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 RA-1412 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. The RA-1412 is supplied with an RR-AT92 remote control and must be placed where the infrared signal from the remote can reach the front panel Remote Sensor. Audio Controls The RR-AT92 duplicates the basic audio functions of the RA-1412 front panel. In practice, very few loudspeakers will present any problems for the RA-1412. See your authorized Rotel dealer if you have any questions. Remote Sensor The remote sensor receives infrared signals from the remote control. 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-AT92 are weak. Speaker Wire Use insulated two-conductor stranded wire to connect the RA-1412 to the speakers. The size and quality of the wire can have an audible effect on the performance of the system. Standard speaker wire will work, but can result in lower output or diminished bass response, particularly over longer distances. In general, heavier wire will improve the sound. These inputs are labeled CD, TUNER, AUX 1, and AUX 2. RA-1412 Stereo Integrated Amplifier 8 The left and right channels are clearly labeled and should be connected to the corresponding channels of the source component. The left RCA connectors are white, the right connectors are red. Use high quality RCA cables for connecting input source components to the RA-1412. [. . . ] Be sure the power outlet being used is not controlled by a switch that has been turned off. LISTENING Selector The setting of the LISTENING selector controls which of the input signals goes to the main outputs and onto the power amplifier ­ or, more simply, which source is heard. Turn the front panel control to the source you want to hear, or press the corresponding button on the RR-AT92 remote. SPEAKERS Selector A four-position rotary switch on the front panel determines which set of speakers, if any, is active. Set the SPEAKER selector as follows: OFF: No speakers will be heard. Use this position when listening to headphones. [. . . ]