User manual ROTEL RB-890

[. . . ] Pay particular attention to the power cord at the plug and where the cord exits the back of the unit. The power cord should be unplugged from the wall outlet during a lightning storm or if the unit is to be left unused for a long period of time. This apparatus shall be connected to a main socket outlet with a protective earthing connection. Use only with a cart, stand, rack, bracket or shelf system recommended by Rotel. [. . . ] However, Rotel amplifiers are designed to work into any speaker impedance between 8 and 4 ohms, and with all the channels working up to their full power. Because the Rotel design is optimized for use with all channels operating together, Rotel is able to specify the true power output for both channels. When watching movies, it's nice to have the amplifier able to reproduce full power into all the channels at the same time, especially in the case of a volcano exploding!Over the decades, we have received hundreds of awards for our products and satisfied hundreds of thousands of people who take their entertainment seriously ­ like you!Rotel was founded by a family whose passionate interest in music led them to manufacture high-fidelity components of uncompromising quality. Through the years, that passion has remained undiminished and the family goal of providing exceptional value for audiophiles and music lovers, regardless of their budget, is shared by all Rotel employees. Rotel's engineers work as a close team, listening to, and fine tuning, each new product until it reaches their exacting musical standards. They are free to choose components from around the world in order to make that product the best they can. You are likely to find capacitors from the United Kingdom and Germany, semiconductors from Japan or the United States, while toroidal power transformers are manufactured in Rotel's own factory. And, as more and more electronics are produced and later discarded, it is especially important for a manufacturer to do all it can to engineer products that have a minimum negative impact on landfill sites and water tables. When used in a high-quality music or home theater system, your Rotel amplifier will provide years of musical enjoyment. 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. The ring around the switch will light, indicating that the amplifier is turned on. To turn the amplifier off, push the button again and return it to the out position. The amplifier provides the option for manual or automatic power on/ off operation. With the switch in the +12V TRIGGER ON position, the amplifier is turned on automatically when a 12V trigger signal is present at the 3. The amplifier will go into standby mode if the +12V signal is not present. Turning the switch OFF cuts power to the amplifier, regardless of whether or not a trigger signal is present. The RB-890 and RB-1582 generate heat as part of their normal operation. 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. [. . . ] Disconnect the AC from the wall and remove the fuse holder 8 on the back panel. Note: Make sure that the power cord is disconnected from the wall before checking or replacing the fuse. If you suspect the fuse is blown take the amplifier to an authorized Rotel service agency to have it checked. Opening the enclosure of the amplifier exposes you to dangerous voltages. [. . . ]