User manual ROTEL RA-820BX4

[. . . ] Heed all warnings and safety information in these instructions and on the product itself. You must allow 10 cm or 4 inches of unobstructed clearance around the unit. Do not place the unit on a bed, sofa, rug, or similar surface that could block the ventilation slots. If the component is placed in a bookcase or cabinet, there must be ventilation of the cabinet to allow proper cooling. [. . . ] Save the RA-820BX4 shipping carton and all enclosed packing material for future use. Shipping or moving the RA-820BX4 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-820BX4. It is your best record of the date of purchase, which you will need in the event warranty service is ever required. Remember the weight of the amplifier when you select an installation location. we recommend installing the RA-820BX4 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. 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. As with other sources be sure to connect the Left and Right channels of each device to the proper channels on the associated components. nOTE: The Tape Outputs are not affected by the Volume , Balance or Tone controls. In practice, very few loudspeakers will present any problems for the RA-820BX4. 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. For best performance, you may want to consider special high-quality speaker cables. Your authorized Rotel dealer can help in the selection of cables for your system. If you are attaching bare wires directly to the binding posts, separate the wire conductors and strip the insulation from the end of each conductor. NOTE: Be sure there are no loose wire strands that could touch adjacent wires or connectors. The Phones output allows you to connect headphones for private listening. Plugging in a set of headphones does not cut off the signal to the outputs. [. . . ] The RA-820BX4 has colorcoded binding post type speaker connectors on the back panel (except in European Community countries where their use is not permitted). These connectors accept bare wire, connector lugs, or dual banana type connectors. Give yourself enough slack so you can move the components to allow access to the speaker connectors. If you are using dual banana plugs, connect them to the wires and then plug into the backs of the binding posts. [. . . ]