English P777 Handbook Multichannel power amplifier
Français consignes de sécurité Attention! Assurez-vous qu’il est possible de débranchez l’appareil aisément avec la fiche d’alimentation électrique à l’arrière de l’appareil. ATTENTION : afin de réduire les risques de choc électrique, n’ouvrez pas le boîtier de l’appareil. Les pièces internes ne sont pas réparables par l’utilisateur. Pour tout problème matériel, contactez des techniciens qualifiés.
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. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
safety guidelines........................................E-2 Important safety instructions........................... E-2 Safety compliance................................................. E-2 welcome.......................................................E-3 installation..................................................E-4 Overview................................................................... E-4 Placing the unit ..................................................... E-4 Room acoustics.................
Overview installation Placing the unit The P777 Multichannel Power Amplifier is built to Arcam’s traditional high quality design and manufacturing standards. It is an extremely highperformance multichannel power amplifier obviously well suited to multichannel home cinema amplification, although it also provides superb quality stereo performance with two-channel sources. The P777 is an ideal partner for the FMJ AV888 Pre-amp Processor.
Interconnect cables English We recommend the use of high-quality screened cables that are designed for the particular application. Other cables will have different impedance characteristics that will degrade the performance of your system (for example, do not use cabling intended for video use to carry audio signals). All cables should be kept as short as is practically possible.
speakers Speaker placement Speaker wiring options The P777 allows connection of up to seven loudspeakers. All speakers, with the exception of the subwoofer, should be arranged around your normal viewing/listening position (see diagram). The subwoofer can be placed almost anywhere and we recommend experimenting with it in various positions to obtain the best result. The closer you place a speaker to intersecting room surfaces (corners, wall and ceiling, wall and floor), the stronger the bass output.
...etc... If your speakers support bi-wiring, then there is a strip of conductive metal on the speakers connecting the low-frequency terminals to those for the higher-frequencies; this must not be removed in a single-wired system.
operation Front panel control Operating procedure The front panel has a single control: a centrally located power on/off button. Once the relevant connections have been made, the P777 can be switched on using the central button on the front panel. POWER Switching on Switches the unit on and off. Note that the modules are turned on individually to stagger the surge created when a powerful amplifier is switched on (i.e., it provides a ‘soft start’).
English troubleshooting No Lights on the Unit Sound only comes from some of the speakers Check that: < the power cord is plugged into the P777 and the mains socket outlet it is plugged into is switched on. < the plug fuse has not failed, or a circuit-breaker earlier in the power supply path has not opened. < the power button is pressed in. Check that: < the correct input has been selected on the preamplifier. < you have assigned the digital input to the correct input source.
Fault status indicators The LED patterns below indicate the following fault conditions: LED status Description Amplifier action All LEDs are green This is the normal operating state of the amplifier. None During power up all LEDs stay red for an extended time The amplifier is waiting for the DC offset fault lines to clear. A DC offset fault can occur if an excessive DC voltage is present at the output of the pre-amp feeding the P777. Normal operation resumes if the lines clear in 20 seconds.
English specifications All measurements are with 230V/50Hz mains power Maximum continuous output power Continual improvement policy All channels driven, 20Hz–20kHz, 8Ω 160W per channel; 1.05kW total All channels driven, 20Hz–20kHz, 4Ω 270W per channel; 1.62kW total Arcam has a policy of continual improvement for its products. This means that designs and specifications are subject to change without notice.
Worldwide Guarantee product guarantee This entitles you to have the unit repaired free of charge, during the first two years after purchase, at any authorised Arcam distributor provided that it was originally purchased from an authorised Arcam dealer or distributor.
E-13 English
SH213E Issue 2 A&R Cambridge Ltd, Pembroke Avenue, Waterbeach, CAMBRIDGE CB25 9QR, England
