User manual ROTEL RP-820

[. . . ] Immediately stop using the component and have it inspected and/or serviced by a qualified service agency if: · The unit has been dropped or damaged in any way Place the unit on a fixed, level surface strong enough to support its weight. It is a massive five-channel power amplifier, capable of providing extremely high power output in the most demanding applications. In fact, the limiting factor in the RP-820's output levels will often be the capacity of your home's electrical supply. Discrete output devices, a massive power supply with toroidal transformers, premium components, and Rotel's Balanced Design ensure superb sound quality. [. . . ] Shipping or moving the RP-820 in anything other than the original packing material may result in severe damage to your amplifier. It is your best record of the date of purchase, which you will need in the event warranty service is ever required. When used in a high-quality music or home theater system, your Rotel amplifier will provide years of musical enjoyment. The heat sinks and ventilation openings in the amplifier are designed to dissipate this heat. 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. Likewise, remember the weight of the amplifier when you select an installation location. Make sure that the shelf or cabinet can support its considerable bulk. Because of its high power rating, the RP-820 can draw considerable current and may tax your home's electrical circuit. A heavy duty multi-tap power outlet strip may be used, but only if it (and the wall outlet) is rated to handle the current demanded by the RP-820. Be sure the Power Switch on the front panel of the RP-820 is turned off (in the out position). Then, connect the supplied power cord on the back panel to the Power Connector of the amplifier and to the AC power outlet. These connectors accept bare wire, connector lugs, or dual banana type connectors (except in the European Community countries where their use is not permitted). The positive connectors for the right front and surround speakers are red. The positive connectors for the left front and surround speakers are blue. Give yourself enough slack so you can move the components enough 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. The hexagonal thumbscrews of the binding posts should be screwed in all the way (clockwise). If you are attaching bare wires directly to the binding posts, separate the wire conductors and strip back the insulation from the end of each conductor. If this happens, turn the amplifier off, let it cool down for several minutes, and attempt to identify and correct the problem. When you turn the amplifier back on, the protection circuit will automatically reset and the LED indicator should go out. In most cases, the protection circuitry activates because of a fault condition such as shorted speaker wires, or inadequate ventilation leading to an overheating condition. In very rare cases, highly reactive or extremely low impedance speaker loads could cause the protection circuit to engage. [. . . ] The wire may have clear insulation with different color conductors (copper and silver). Note: Be sure there are no loose wire strands that could touch adjacent wires or connectors. This input is typically only used in professionally-installed custom systems. For information regarding how to use this input, contact your nearest authorized Rotel service center. [. . . ]