User manual HARMAN KARDON SIGNATURE15

[. . . ] 1. 5 Two-Channel Bridgeable Amplifier Owner's Manual Staple or clip your original invoice here. ¤ Signature 1. 5 Two-Channel Bridgeable Amplifier Owner's Manual Table of Contents Introduction . 12 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. [. . . ] Connect the other end to the TRIGGER OUTPUT jack on the 2. 0. Remote Turn-On Using an External AC-to-DC Converter If the 1. 5 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 UL/CSA-approved class-2 AC-to-DC power converter capable of delivering a 6- to 12-volt DC signal. The DC voltage should terminate in a standard 3. 5 mm mono miniplug, with the tip of the plug "positive" (+). This type of converter may be obtained as a "Power Adapter" from many electronics retailers. Consult your dealer for further information. Output Connections The final step of the installation process is to connect the amplifier to your speakers using high-quality cable. A pair of binding posts is provided for each channel output. These posts will accept bare wire or banana-type plugs. To ensure that the high-quality signals produced by the 1. 5 are carried to your speakers without loss of clarity or resolution, we recommend that you use high-quality 6 Signature 1. 5 speaker cable. Many brands of cable are available, and the choice of cable may be influenced by the distance between your speakers and the amplifier, the type of speakers you use, personal preferences and other factors. Your dealer or installer is a valuable resource to consult in selecting a proper cable for connections between your amplifier and speakers. Regardless of the brand or type of cable selected, we recommend that you use a cable constructed of highstrand-count copper with a gauge of 14 or smaller. When specifying cable, remember that the smaller the number, the thicker the cable. Cable with a gauge of 16 may be used for short runs of less than ten feet. We do not recommend the use of cables with an AWG equivalent of 18 or higher due to the power loss and degradation in performance that will occur. Cables run inside walls should have the appropriate markings to indicate listing with UL ("CL-2/CL-3"), CSA ("FT-4") or appropriate safety agency standards that may be required in your area. Questions about running cables inside walls should be referred to your installer or a licensed electrical contractor who is familiar with the NEC and/or the applicable building or electrical codes in your area. Two-Channel/Stereo Systems: When installing a twochannel (stereo) system, connect the positive (+) and negative ( ) terminals from the right and left speakers to the matching terminals ¡ ¢ on the rear panel of the 1. 5. Make certain that the Bridge/Normal Switch £ is in the NORMAL position (see page 8). When the 1. 5 is used for two-channel/stereo operation, speakers with an impedance of no less than 4 ohms may be used. Bridged Mono Applications: To use the 1. 5 as a singlechannel, mono amplifier, connect the (+) terminal on your speaker to the (+) terminal on the Channel Two Output ¢ on the 1. 5. Connect the negative ( ) terminal on your speaker to the positive (+) terminal on the Channel One Output ¡ (see page 9). Important Note: When the 1. 5 is used in the Bridged Mono mode, do not use speakers with an impedance of less than 8 ohms. Installation and Connections When making speaker connections, note that one conductor of the speaker cable may have no markings or an indication of ( ) for negative polarity, and the other will have a red line, brand-name markings, a colored thread or some other positive-polarity indication (+). - The wire with the positive indication should be connected to the red terminals on both the 1. 5 and your speakers. [. . . ] Once the switch is turned on, the 1. 5 will go into a brief Warm-Up mode, as indicated by the LED Indicator 3 flashing green. This is normal, and it protects your speakers from damage as the amplifier stabilizes. When the 1. 5 is fully ready for operation the LED Indicator will go out and the Power-On Indicator 2 will glow blue behind the word SIGNATURE. At this point you will begin to hear audio from the speakers connected to the 1. 5. [. . . ]