User manual HARMAN KARDON PA 2000

[. . . ] PA 2000 Bridgeable Multichannel Amplifier OWNER'S MANUAL CH 1 Power Standby Protect CH 2 Power ® ® Power for the digital revolution. TM PA 2000 Bridgeable Multichannel Amplifier 3 4 4 5 6 7 8 9 10 11 12 13 14 Introduction Safety Information Unpacking and Installation Front Panel Controls and Indicators Rear Panel Connections Installation and Configuration Channel Configuration and Speaker Connections Speaker Wire Connections Audio Signal Connections Operation Service Information Troubleshooting Guide Technical Specifications Typographical Conventions In order to help you use this manual with the front panel controls and rear panel connections, certain conventions have been used. EXAMPLE ­ (bold type) indicates a specific front panel button or rear panel connection jack 1 ­ (number in a square) indicates a specific front panel control ¡ ­ (number in a circle) indicates a rear panel connection 2 TABLE OF CONTENTS Introduction Congratulations!As the owner of a PA 2000 Multichannel/Multizone Power Amplifier, you have at your command a unique product. The PA 2000 has been carefully designed to deliver the best possible sonic performance, along with unique features that make it as much at home in a multiroom audio system as it is in providing power to the additional surround channels required for the latest digital audio formats. [. . . ] The unit will return to the Standby mode 10 to 15 minutes after the audio signal stops. NOTE: When the PA 2000 is used in the Bridged mode as a single-pair stereo amplifier, use the Power Control Mode Switch £ in the area labeled "BRIDGE/CHANNEL ONE" to make the settings for the desired turn-on mode. 7 INSTALLATION & CONFIGURATION Channel Configuration and Speaker Connections Two-Pair Output For use in multiroom applications, the PA 2000 may be used to send the same signal feed to two separate locations, such as living room and dining room speakers. While each room will receive the same feed, the volume may be controlled by using the channel Output Level Trim Controls ¢ or optional in-wall volume controls. The PA 2000 is factory-shipped to operate in this configuration, but it is always a good idea to double-check the switch setting to make certain that it is correct. For two-pair output, the Bridge/Normal Switch should be set so that the switch is on the right side, over the word "NORMAL". To ensure that the switch setting is not changed, make certain that the plastic switch guard is installed once the proper setting is made. To connect speakers when the PA 2000 is used in the two-pair output mode, connect one pair of speakers to the Channel 1 Output Speaker Terminals ¶, and the other pair to the Channel 2 Output Speaker Terminals ·. (See Figure 1. ) Right Speaker Left Speaker Channel One One-Pair Output (Bridged Operation) The PA 2000 is a bridgeable amplifier, which means that the two pairs of medium-powered amplifiers may also be combined, or "bridged", to form a higher-powered stereo amplifier with a single pair of outputs. This type of operation is suitable for use in powering the rear surround channels of a 7. 1 surround-sound system, or for general use as a high-quality, highpower stereo amplifier for a main listening room or remote room applications. To configure the PA 2000 for use as a singlepair stereo amplifier, follow these steps: · Disconnect the power from the unit. · Locate the Bridge/Normal Switch on the rear panel, and use a #1 Phillips screwdriver to carefully remove the screws on either side of the plastic switch guard. Remove the plastic guard and set it aside with the screws. · Slide the switch to the left so that it is under the word "BRIDGE". · Replace the plastic switch guard so that it secures the switch in the desired position. · Replace the two screws to secure the plastic guard. To connect speakers when the PA 2000 is used as a stereo amplifier, an alternative connection method is used. As shown in Figure 2, connect the speakers to the terminals shown on the rear panel as "BRIDGE +/­", with the connections made vertically, as opposed to the horizontally oriented connections used in twopair output use. Note that the negative, or "­", terminal used for bridged operation is normally marked as "+" for use in two-pair use. For bridged operation, please observe the Bridge markings, not the markings used for the Ch. 2 output. + ­ + ­ + ­ Right Speaker Channel Two + ­ Left Speaker Figure 1 + -- + -- Right Speaker Left Speaker Figure 2 8 CHANNEL CONFIGURATION Speaker Wire Connections Regardless of the channel configuration used, the final step of the installation process is to connect the amplifier to your speakers, using high-quality cable. The PA 2000 is equipped with binding post terminals that accept bare wire, spade lugs or banana-type plugs, when they are permitted by local safety agencies. Once you have located the proper speaker terminals for the type of output configuration in use, connect your speakers using the following guidelines. [. . . ] In these cases, the PA 2000's output volume may be adjusted by turning the Output Level Trim Control ¢ on the rear panel. When adjustment is required, turn the knob in either direction until the desired level is achieved. When the PA 2000 is operated in the Bridged configuration, use the Output Level Trim Control ¢ labeled "VOL. NOTE: The Output Level Trim Controls operate for both speakers in a given channel. [. . . ]