INSTALLATION AND CONNECTIONS 21ENGLISHInstallation and ConnectionsSystem and Power ConnectionsThe AVR 347 is designed for flexible use withmultiroom systems, external control componentsand power amplifiers.Main Room Remote Control ExtensionIf the receiver is placed behind a solid or smokedglass cabinet door, the obstruction may preventthe remote sensor from receiving commands. Inthis event, the remote sensor of anyHarman Kardon or other compatible device, notcovered by the door, or an optional remotesensor may be used. Connect the Remote IROutput of that device or the output of theremote sensor to the Remote IR Input jack !.If other components are also prevented fromreceiving remote commands, only one sensor isneeded. Simply use this unit’s sensor or a remoteeye by running a connection from the RemoteIR Output jack to the Remote IR Inputjack on Harman Kardon or other compatibleequipment.Multiroom IR LinkThe key to remote room operation is to link theremote room to the AVR’s location with wire foran infrared receiver and speakers or an amplifier.The remote room IR receiver (this can be anoptional IR receiver or any other remotableHarman Kardon device in the remote room withIR sensor integrated) should be connected to theAVR via standard coaxial cable. Connect theRemote IR Output of the device or of theoptional sensor with the Multiroom IR Inputjack ) on the AVR’s rear panel.If other Harman Kardon compatible sourceequipment is part of the main room installation,the Remote IR Output jack on the rearpanel should be connected to the IR IN jack onthat source device. This will enable the remoteroom location to control source equipmentfunctions.When a remote IR sensor is used to control non-Harman Kardon source equipment, we recom-mend that you make a direct connection or usean optional, external IR “blaster” connected tothe Remote IR Carrier Output Jack +. If youare in doubt as to which IR Output jack to usefor the equipment in your system, contact yourdealer or installer, or the manufacturer’s supportsite and ask whether the unit to be controlleduses “full carrier” or “stripped” carrier IRcommands. When “full carrier commands” areused, make the connection to the Remote IRCarrier Output Jack +. Otherwise, make theconnection to the Remote IR Output Jackas noted above.NOTE: All remotely controlled components mustbe linked together in a “daisy chain”. Connectthe IR OUT jack of one unit to the IR IN of thenext to establish this chain.Multiroom Audio ConnectionsDepending on your system`s requirement anddistance from the AVR to the remote room, threeoptions are available for audio connection:Option 1: Use high-quality, shielded audiointerconnect phono cable from the AVR’s loca-tion to the remote room. In the remote room,connect the interconnect cable to a stereopower amplifier. The amplifier will be connectedto the room’s speakers. At the AVR, plug theaudio interconnect cables into the MultiroomOutput Jacks ' on the AVR’s rear panel.Option 2: Place the amplifier that will providepower to the remote location speakers in thesame room as the AVR, and connect theMultiroom Output jacks ' on the rear panelof the AVR to the audio input of the remoteroom amplifier. Use the appropriate speaker wireto connect the optional power amplifier to theremote speakers. High-quality wire of at least2.5 mm 2 is recommended for long multiroomconnections.Option 3: Taking advantage of the AVR’s built-in seven-channel amplifier, it is possible to usetwo of the amplifier channels to power speakersin the remote room. When using this option youwill not be able to use the full 7.1-channel capa-bilities of the AVR in the main listening room,but you will be able to add another listeningroom without additional external power ampli-fiers. To use the internal amplifiers to power aremote zone, connect the speakers for theremote room location to the SurroundBack/Multiroom Speaker Outputs .Before using the remote room you will need toconfigure the amplifiers for surround operationby changing a setting in the Multiroom menu,following the instructions shown on page 47.NOTE: For all options, you may connect anoptional IR sensor (Harman Kardon He 1000) inthe remote room to the AVR via an appropriatecable. Connect the sensor’s cable to theMultiroom IR Input ) on the AVR and usethe Zone II remote to control the room volume.Alternatively, you may install an optional volumecontrol between the output of the amplifiers andthe speakers.NOTE: The AVR 347’s multiroom system is onlycapable of distributing analog audio sources tothe remote zone. Therefore, when connectingyour digital audio equipment (e.g. CD or DVDplayers) as described on page 17, make sure touse both analog and digital audio connectionsto ensure that the devices will be available tothe multiroom system.A-BUS Installation ConnectionsThe AVR is among the very few receivers avail-able today that offers built-in A-BUS Ready®operation. When used with an optional A-BUSkeypad or control module, you have all thebenefits of remote zone operation without theneed for an external power amplifier.To use the AVR with an approved A-BUS prod-uct, simply connect the keypad or module that isin the remote room to the AVR using standard“Category 5” wiring that is properly rated forthe inwall use specific to the installation.Terminate the wiring at the receiver end to astandard RJ-45 jack in compliance with theinstructions furnished with the A-BUS module.You may connect a single A-BUS module to theAVR 347 with no further equipment needed. Ifyou wish to connect more than one A-BUSmodule, an optional, external A-BUS hub may beused to provide that capability.No further installation or adjustment is needed,as the A-BUS connector on the AVR routes thesignals in and out of the keypad to their properdestination for power, signal source and control.The output fed to the A-BUS jack is determinedby the AVR’s multiroom system, and the menusmay be used as is.AC Power ConnectionsThis unit is equipped with one accessory ACoutlet. It may be used to power accessorydevices, but should not be used with high-currentdraw equipment such as power amplifiers. Thetotal power draw to the Switched Outlet should not exceed 50 watts.The Switched outlet will receive power onlywhen the unit is on completely. This is recom-mended for devices that have no power switchor a mechanical power switch that may be left inthe “ON” position.NOTE: Many audio and video products go into aStandby mode when they are used withswitched outlets, and cannot be fully turned onusing the outlet alone without a remote controlcommand.The AVR draws significantly more current thanother household devices such as computers thatuse removable power cords. For that reason, it isimportant that only the cord supplied with theunit (or a direct replacement of identicalcapacity) be used.Once the power cord is connected, you arealmost ready to enjoy the AVR 347’s incrediblepower and fidelity!