User manual ROTEL RA-820BX4

[. . . ] 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. [. . . ] 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. 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. 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. Press the front panel Power Switch button, to turn the RA-820BX4 on. The Power Indicator light is illuminated when the RA-820BX4 is on. Press Power Switch button again to turn the RA-820BX4 off. 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. ] The Tape inputs and outputs can be connected to any record/playback device that accepts standard line level analog input and output signals. typically that will be a conventional tape recorder. When connecting a recorder to the RA-820BX4 remember that the outputs of the recorder must be connected to the tape inputs of the RA-820BX4. similarly the tape outputs of the RA-820BX4 must be connected to the inputs of the recorder. As with other sources be sure to connect the Left and Right channels of each device to the proper channels on the associated components. Use high quality connecting cables to prevent loss of sound quality. nOTE: The Tape Outputs are not affected by the Volume , Balance or Tone controls. Speaker impedance ratings are less than precise. In practice, very few loudspeakers will present any problems for the RA-820BX4. See your authorized Rotel dealer if you have any questions. The size and quality of the wire can have an audible effect on the performance of the system. [. . . ] If you are using dual banana plugs, connect them to the wires and then plug into the backs of the binding posts. The thumbscrews of the binding posts should be screwed in all the way (clockwise). The speaker outputs are controlled by the switch 6 on the front panel. If only one set of speakers will be used at any given time, the speakers may have an impedance as low as 4 ohms. [. . . ]