User manual ROTEL RP-855

[. . . ] Take the unit to a qualified service person for inspection and necessary repairs. Read all the instructions before connecting or operating the component. Heed all warnings and safety information in these instructions and on the product itself. You must allow a minimum 10 cm or 4 inches of unobstructed clearance around the unit. [. . . ] In addition to basic installation and operating instructions, it provides valuable information on various RP-855 system configurations as well as general information that will help you get optimum performance from your system. Please contact your authorized Rotel dealer for answers to any questions you might have. in addition , all of us at Rotel welcome your questions and comments. Save the RP-855 shipping carton and all enclosed packing material for future use. Shipping or moving the RP-855 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. However, when rack mounting or otherwise installing the amplifier in a confined space near other heat-generating components, additional cooling may be desirable. The optional RKBF-1 fan kit can be easily installed for additional forced air cooling. In addition to lowering operating temperatures, the optional fan kit improves the performance of the amplifier, especially when driving difficult loudspeaker loads. When not using an equipment rack, place the RP-855 on a solid, level surface away from sunlight, heat, moisture, or vibration. When using the fan cooling, select a location for the amplifier where the noise will not be intrusive. To turn the amplifier off, push the button again and return it to the out position. An input jack for connecting the wires carrying a +12 volt trigger signal from a Rotel preamp or surround sound processor to turn the amplifier on and off. To use this feature the adjacent slide switch must be placed to the left position (see previous section). The TRIGGER INPUT accepts any control signal (AC or DC) ranging from 3 volts to 30 volts. The RP-855 provides three different options for manual or automatic power on/off operation. These modes are selectable using a three-position slide switch on the back panel as follows: · With the switch in the OFF position, the amplifier is turned on or off manually using the front panel power switch. Also use this mode if you are using a switched AC outlet to control power to the amplifier. The 12V TRIG jack labeled OUT is used to pass the remote turn-on signal to a second Rotel amplifier. Any 12V Trigger signal at the INPUT jack will be passed through to the OUT jack. The RP-855 provides standard conventional input connections -- unbalanced RCA type connections as found on nearly all audio equipment. There is also a pair of SIGNAL OUTPUT LINK connections for passing the input signal connected to the "A" pair of channels on to another audio component. [. . . ] Be sure there are no loose wire strands that could touch adjacent wires or connectors. Most difficulties in audio systems are the result of poor or wrong connections, or improper control settings. If you encounter problems, isolate the area of the difficulty, check the control settings, determine the cause of the fault and make the necessary changes. If you are unable to get sound from the RP-855, refer to the suggestions for the following conditions: 03% THD) 6x50 watts/ch into 8 ohms, all channels driven Continuous Power Output into 4 ohms (DIN 1 kHz, 1. [. . . ]