User manual ROTEL RB-1070

[. . . ] Connect the component to the power outlet only with the supplied power supply cable or an exact equivalent. Do not route the power cord where it will be crushed, pinched, bent at severe angles, exposed to heat, or damaged in any way. Pay particular attention to the power cord at the plug and where it exits the back of the unit. The power cord should be unplugged from the wall outlet if the unit is to be left unused for a long period of time. [. . . ] If you are going to be away from home for an extended period of time such as a monthlong vacation, it is a sensible precaution to unplug your amplifier (as well as other audio and video components) while you are away. Instead, the protection circuit monitors the temperature of the output devices and shuts down the amplifier if temperatures exceed safe limits. However, should a faulty condition arise, the amplifier will stop playing and the LED indicator on the front panel will light up. If this happens, turn the amplifier off, let it cool down for several minutes, and attempt to identify and correct the problem that caused the protection circuitry to engage. When you turn the amplifier back on, the protection circuit will automatically reset and the indicator LED 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. If the protection circuitry triggers repeatedly and you are unable to isolate and correct the faulty condition, contact your authorized Rotel dealer for assistance in troubleshooting. The LED indicator above 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. Because of its high power rating, the RB-1070 can draw considerable current. Therefore, it should be plugged directly into a 2-pin polarized wall outlet. A heavy duty multi-tap power outlet strip may be used if it (and the wall outlet) is rated to handle the current demanded by the RB-1070 and all the other components connected to it. Be sure the power switch on the front panel of the RB-1070 is turned off (in the out position). Your RB-1070 is configured at the factory for the proper AC line voltage in the country where you purchased it (either 115 volts AC or 230 volts AC with a line frequency of either 50 Hz or 60 Hz). Note: Should you move your RB-1070 amplifier to another country, it is possible to reconfigure your amplifier for use on a different line voltage. Opening the enclosure of the RB-1070 exposes you to dangerous voltages. Consult a qualified service person or the Rotel factory service department for information. 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. This input accepts any control signal (AC or DC) ranging from 3 volts to 30 volts. [. . . ] In this configuration the single channel produces a massive 330 watts!This feature allows you to increase the overall power output of your system by bridging the RB-1070 and adding a second bridged RB1070. If the amp is getting AC power, but is producing no sound, check the Protection indicator on the front panel. If not, check all of your connections and control settings on associated components. [. . . ]