Harman Kardon PA 4000 Owners Manual - Page 3

Introduction Congratulations! As the owner of a PA 4000 Power Amplifier, you have at your command a unique product. The PA 4000 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 PA 4000 is alone among audio power amplifiers in being designed to accommodate the long speaker runs required for multiroom applications without sacrificing the ultrawidebandwidth circuitry and high-current capability technologies that are key to Harman Kardon's long-standing tradition of audio amplifier excellence. As an added audiophile touch, five-way speaker terminals ensure a secure connection to large-gauge speaker wire, and individual output level trim controls enable output balance to be set precisely. Along with power and performance, the PA 4000 provides the flexibility for a variety of applications. Depending on your needs and system requirements: the PA 4000 may be configured to serve as a two-channel, high-power amplifier for the rear surround channels in the new 6.1 or 7.1 digital audio systems; it may be used to power two separate remote zones or four separate remote rooms; or - for the ultimate in flexibility - it can even provide power to a multiroom zone and rear surround channels at the same time! To allow the widest range of system options, the PA 4000 includes both Music Sense circuitry, which automatically turns the amplifier on when an audio signal is present, and a low-voltage trigger for compatibility with multiroom controllers. In order to fully enjoy the performance of your amplifier, please take a few minutes to read this owner's manual. It contains important information that will help you to make certain that the amplifier is properly configured for operation with the rest of the equipment in your system. If you have any questions about this product, its installation or its operation, please contact your retailer or custom installer. They are your best source of product information. Welcome to the Harman Kardon family. We wish you many years of listening pleasure! Features s Dual-Input Bridgeable Multichannel Amplifier s High-current, ultrawide-bandwidth design s Dual-input design allows two separate signals to be used for simultaneous multizone and surround channel or stereo listening s Parallel line-level output connections permit amplifiers to be cascaded for system use s Music Sense circuitry and low-voltage trigger connection for automatic turn-on s IR and keypad inputs for all output channels permit individual remote volume control s Five-way binding post terminals accommodate large-gauge speaker cable s Massive heatsinks for quiet, fan-free convection cooling s Output level trim controls s Removable IEC power cord s Specially optimized circuitry is com- patible with long speaker wire runs that may be necessary in a wholehouse multiroom system CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. 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. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU'AU FOND. 3 INTRODUCTION