User manual HARMAN KARDON PA2400

[. . . ] It contains important information that will help you to make certain that the amplifier is properly connected to the rest of the equipment in your system. If you have any questions about this product or its installation and operation, please contact your retailer or custom installer. They are your best sources of product information. You may also contact Harman Kardon via the World Wide Web at: http://www. harmankardon. com. [. . . ] to have the PA2400 automatically turn on when the device is activated. See page 4 for additional details. ¢ Remote Amp Trigger In: Connect this jack to the matching trigger output on a PT2500 or other compatible device Note: To assist in the installation of this product, the numbers used in this diagram appear in the manual to guide you to rear panel connections. Installation and Connections 4 Note: When making any connections between source components, processors or preamplifiers and the PA2400, or when making any connections to speakers, be certain that both the input device and the PA2400 are turned off. To ensure that there will be no unwanted signal transients that can damage equipment or speakers, it is always best to unplug all equipment from AC power outlets before making any connections. Modern electronic products often have a "standby" mode that may be activated even though the product may appear to be turned off. Remote Turn-On Using an External ACto-DC Converter If the PA2400 is not used with a compatible Harman Kardon product, it is still possible to activate the unit for automatic turn-on. To control the amplifier in this manner you will need a small AC-to-DC power converter capable of delivering a 6- to 12-volt DC signal. The DC voltage should terminate in a standard 3. 5mm mono miniplug. This type of converter may be obtained as a "Power Adapter" from many electronics retailers. Consult your dealer for further information. Plug the AC adapter into a switched outlet that will be activated when you wish to have the amplifier turn on. This may be the switched outlet at the rear of an AV receiver or other audio equipment, an AC outlet that is part of a current sensing control unit activated by a preamp or surround processor or a switched AC wall outlet. Connect the 3. 5mm miniplug from the power converter to the Remote Amp Trigger in ¢ jack on the rear of the PA2400. Connect the outputs of the PT2500 or your surround processor to the audio inputs of the PA2400 TM. Note that one conductor of the speaker cable will have no markings or an indication of "-" for negative polarity, and the other will have a red line, brandname markings, a colored thread or some other positive-polarity indication. For example, make certain that the cable length connecting left and right front or left and right rear (surround) speakers is identical, even though one speaker may be physically closer to the amplifier than the other. Do not coil any excess cable, as this may become an inductor that creates frequency response variations in your system. Connect the wires to the speakers, again being certain to observe proper polarity. Remember to connect the negative or black wire to the matching terminal on the speaker. Similarly, the positive or red wire should be connected to the like terminal on the speaker. NOTE: While most speaker manufacturers adhere to an industry standard of using black terminals for negative and red ones for positive, some manufacturers may not adhere to this configuration. To ensure properly phased connections and optimal performance, consult the identification plate on your speaker terminals, or the speaker's manual to verify polarity. If you do not know the polarity of your speaker, ask your dealer or installer for advice before proceeding, or consult the speaker's manufacturer. Operation 6 Operation of the PA2400 is simple. There are no controls to adjust once the installation is complete. After all connections have been made to the amplifier's inputs and speaker terminals, connect the amplifier's power cord to an AC outlet. [. . . ] At this point the triggering unit should be turned off. Plug the PA2400 into a live AC power source. The ring surrounding the power switch will glow red. Press the Power switch once and note that the ring will turn to amber. [. . . ]