[. . . ] 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. [. . . ] 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 RMB-1075 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 RMB-1075. Be sure the Power Switch on the front panel of the RMB-1075 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. Your RMB-1075 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). 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. THX grew from George Lucas' personal desire to make your experience of the film soundtrack, in both movie theaters and in your home theater, as faithful as possible to what the director intended. Movie sound tracks are mixed in special movie theaters called dubbing stages and are designed to be played back in movie theaters with similar equipment and conditions. The soundtrack created for movie theaters is then transferred directly onto Laserdisc, VHS tape, DVD, etc. , and is not changed for playback in a small home theater environment. THX engineers developed patented technologies to accurately translate the sound from the movie theater environment into the home, correcting the tonal and spatial errors that occur. Before any home theater component can be THX Ultra certified, it must incorporate the THX technologies and also pass a rigorous series of quality and performance tests. Only then can a product feature the THX Ultra logo, which is your guarantee that the Home Theater products you purchase will give you superb performance for many years to come. This input accepts any control signal (AC or DC) ranging from 3 volts to 30 volts. NOTE: Should you move your RMB-1075 to another country, it is possible to configure your amplifier for use on a different line voltage. [. . . ] When driving multiple speakers in parallel, it is recommended that you select speakers with a nominal impedance of 8 ohms or higher. In practice, very few loudspeakers will present any problems for the RMB-1075. The RMB-1075 has conventional RCA type input connectors, the type found on nearly all audio equipment. The size and quality of the wire can have an audible effect on the performance of the system. [. . . ]