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MONO LINK 6. The P75 can be adapted to provide two mono loudspeaker outputs from a single input. Pull out the U-link 8 supplied and use it to connect the MONO LINK sockets 6 together. Utilising one P75 power amplifier per loudspeaker will enable you to bi-amplify bi-wireable loudspeakers. This is particularly beneficial for top quality stereo installations with a separate preamplifier, or for the left, centre and right channel loudspeakers in a five speaker Dolby Pro Logic™ or Dolby Digital™ system. Contact your Arcam dealer for more detailed information. DAISY CHAIN The P75 is capable of driving further P75 amplifiers (or any other power amplifier), to drive more speakers (e.g. those in other rooms or tri-amplified speakers etc). Connect the extra power amplifier inputs to the MONO LINK outputs 6 left to left, right to right with suitable high quality phono to phono cables. Connecting to a power supply Connect up following the instructions for installing the A65 and A75 integrated amplifi ers (page 4). CIM MODULE 7 The CIM (custom install module) is an optional module that enables you to adjust the gain of the left and right channels of the power amplifier independently and also to switch the power amplifier on/off remotely, with a 12 volt trigger. The CIM module would normally be used in a multi-room set up. When a CIM module is fitted into a power amplifier, the front panel power switch is disabled. See your Arcam dealer for further information. Using the power amplifier SP1 DIRECT terminals 3 Are switched off when a headphone jack plug is inserted in the headphone socket bk on the front of the amplifier or, by pressing the MUTE button ( ) on the remote control handset. SP2 9 Push the button in to select the loudspeakers connected to the SP2 4 speaker terminals. To disconnect the speakers, release the switch again. HEADPHONE socket bk. Accepts headphones rated between 8. and 2k. fi tted with a 6.3mm stereo jack plug. If your headphones are fi tted with a different plug contact your dealer for a suitable adaptor. Inserting a headphone jack plug automatically mutes (i.e. cuts off) the loudspeakers. POWER bl. Switches the amplifier on and off. Power indicator bm. This initially glows orange. After a few seconds, the colour changes to green and a slight click may be heard as the output muting relay disengages. When the indicator glows orange, the speakers are disconnected and an internal protection circuit is working. If the indicator glows orange during normal use it may be due to an amplifier output overload. Switch the amplifier off and wait for 2–3 minutes before switching on again. If the indicator continues to glow orange, switch the unit off, remove all the speaker cables and switch on again. If the indicator goes green on switching on, there is a problem with the speakers or speaker cables. Check the speakers and speaker cables for short circuits before reconnecting them. If the indicator continues to glow orange with no speakers connected, contact your Arcam dealer. A65/A75/P75 8 Bi-wiring and bi-amping loudspeakers Before you start WARNING: Do not make any connections to your amplifier while it is switched on or connected to the mains supply. Before switching on please check all connections thoroughly, making sure bare wires or cables are not touching the amplifier in the wrong places (which could cause short circuits) and you have connected positive (+) to positive and negative (–) to negative. Always ensure that the volume control on your amplifier is set to minimum before starting these procedures. Bi-wiring your loudspeakers Bi-wiring improves the sound of your system because it divides the high and low frequency signal currents into separate speaker cables. This avoids signal distortions arising from the high and low frequency currents interacting with one another within a single cable, as in conventionally wired systems. You will need: Speakers – with four input terminals each: these will be marked HF (High Frequency) and LF (Low Frequency). Loudspeaker cables – two pairs of cables per loudspeaker (which may be joined at the amplifier end if your amplifi er has only one pair of output terminals per channel). Or, a suitably terminated cable set (a loom, probably prepared by your dealer and capable of being used for bi-wiring in one length). How to bi-wire loudspeakers 1. Remove the terminal links on the rear of your loudspeakers WARNING: This step is essential or damage to your amplifier may result which is not covered under warranty. 2. Connect the cables as shown in the diagram below, ensuring correct polarity at all times. Arcam A65 or A75 amplifier +– +– RL Right speaker HF LF + + – – HF LF + + Left– – speaker Bi-amping your system The performance of your system can be further enhanced over that achieved with bi-wiring, by extending the principle one stage further to include separate amplification for the low and high frequency drive units in each loudspeaker enclosure. Connect the amplifi...

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