Assessments - 2, GPA: 5 ( )

Fabricante : Adcom Arquivo Tamanho: 3.39 mb Arquivo Nome : Língua de Ensino:

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 amplifier 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-amping 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. RLArcam P80 power amplifier+–+– RL+–+– RightspeakerHFLF+ – +– – HFLF+ – – + LeftspeakerArcam A80 amplifier Arcam A80 amplifierRLRightspeakerHFLF+ + +– HFLF+ + – – +– Leftspeaker– – Bi-wiring using one set of connections on amplifier Recommended bi-amping configuration Service information Before returning your amplifier for service, please check the following: Sound cuts out for no reason If the temperature of the internal heatsink rises above a safe level, then a thermal cutout inside the amplifier will operate. The power indicator on the front panel flashes and the protection system temporarily removes the power to the speakers. The system resets after the heatsink has cooled down. Note that because of the high output voltage from a CD player, it is possible to drive the A80 at full power even though the volume is not set at maximum. Amplifier does not switch back on The A80 and P80 amplifiers have a protection mechanism which is activated if you switch the unit on immediately after turning it off. If this mechanism activates, wait 30 seconds then switch back on again. Technical specifications A80 P80 Continuous power output, per channel Both channels, 8., 20Hz–20kHz 65W 65W Single channel, 4., 1kHz 105W 105W Distortion, 8., 80% power, 1kHz 0.005% 0.005% Inputs Phono cartridge input sensitivity, MM 2.5mV Line and tape inputs: Nominal sensitivity 250mV 700mV Input impedance 22k. 22k. Signal/noise ratio (CCIR) 98dB 108dB Preamplifier outputs Nominal output level 700mV Output impedance <50. General Power consumption (maximum) 650VA 650VA Dimensions W x D x H (including feet) 430 x 330 x 75mm 430 x 330 x 75mm Weight (net) 9kg 9kg Weight (packed) 10kg 10kg Supplied accessories mains lead CR-389 remote control 2 x AAA batteries mains lead E&OE NOTE: All specification values are typical unless otherwise stated. Continual improvement policy Arcam has a policy of continual improvement for its products. This means that designs and specifications are subject to change without notice. Remote-control codes The following table gives the IR-commands accepted by the A80. Power commands Command Decimal Code Power toggle 16–12 Power-on 16–123 Power-off 16–124 Source selection commands Command Decimal Code PHONO select 16–1 AV select 16–2 Tuner select 16–3 DVD select 16–4 tape select 16–5 VCR select 16–6 CD select 16–7 Aux select 16–8 Volume control commands Command Decimal Code Mute 16–13 Volume up 16–16 Volume down 16–17 Menu navigation commands Command Decimal Code Select 16–37 Enter 16–87 Speaker control commands Command Decimal Code Speaker 1 toggle 16–35 Speaker 2 toggle 16–39 Speaker 1 on 16–43 Speaker 1 off 16–44 Speaker 2 on 16–45 Speaker 2 off 16–46 Display control commands Command Decimal Code Display 16–59 Note that the A80 also responds to code 20–53 (the PLAY command for an Arcam CD player). The A80 swiches automatically to CD input on receiving this command. Guarantee It should be sent carriage prepaid by a reputable carrier -– NOT by post. No responsibility can be accepted for the unit whilst in transit to the dealer or distributor and customers are therefore advised to insure the unit against loss or damage whilst in transit. For further details contact Arcam at: Arcam Customer Support Department, Pembroke Avenue, Waterbeach, CAMBRIDGE, CB5 9QR, England. Telephone: +44 (0)1223 203200Fax: +44 (0)1223 863384Email: support@arcam.co.uk Problems? If your dealer is unable to answer any query regarding this or any other Arcam product please contact Arcam Customer Support on +44 (0) 1223 203200 or write to us at the above address and we will do our best to help you. Worldwide 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 ...

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