Cambridge Audio 640A Stereo Amplifier User Manual


 
540A/640A V2.0 Integrated amplifier
Azur integrated amplifier 7
Multi-rroom
PSU - Connect an Incogntio PS10 to supply power to the connected
multi-room keypads/speakers.
Keypad 1/2 - Connect one or two Incogntio A-BUS KP10 keypads (or
other A-BUS compatible keypads) using CAT5/5e cable.
Incognito AS10 Active Ceiling Speakers can also be
connected here.
IR - Four IR outputs for remote control of source equipment.
Please refer to the ‘Multi-Room’ section of this manual for more
information on connections and set-ups.
Control
Bus
In - Allows un-modulated commands from multi-rooms systems or other
components to be received by the unit.
Out - Loop out for control bus commands to another unit.
Pre-OOut
Connect these sockets to the inputs on an external power amplifier(s) or
active subwoofer etc.
Tape
In
Connect to a tape deck or to the analog output sockets on a MiniDisc,
portable digital music player or CD recorder using an interconnect cable
from the recorder's Line Out sockets to the amplifier's Tape In sockets.
The Tape Input circuit of the 540A/640A V2.0 is a "monitor" type,
different from the other 5 inputs. For the 5 normal inputs, the source
selected for listening to will be sent out of the Rec 1/Rec 2 outputs for
recording. The source currently being listened to and (optionally)
recorded is then shown on the front panel by a corresponding blue LED.
However, when the Tape Mon Input is selected a second LED will
illuminate indicating that the Tape Monitor Input is now being listened to
with a different source being sent out of the Rec1/Rec2 outputs for
recording. The recording source is shown by the first LED and can be
changed by pressing the other source buttons. To switch Tape Monitor
off, simply press the Tape Mon button again, toggling this function off.
This feature is most useful when using 3-head analog cassette decks
which allow the signal being recorded to be played back live off tape (via
a 3rd head) whilst it is simultaneously recorded. It is then possible by
toggling the Tape Monitor input on and off to compare directly in real
time the original and recorded signal so that adjustments to the
recording parameters of the tape machine can be made (consult the
manual of your 3-head analog cassette deck for full details).
Record
Out
1/2
These two identical output sockets can be connected to a tape deck or
to the analog Record In sockets on a MiniDisc or CD recorder.
AV/MD,
DVD,
Tuner/DAB,
CD,
Aux
These inputs are suitable for any 'line level' source equipment such as
CD players, DAB or FM/AM tuners etc.
Note:
These inputs are for analog audio signals only. They should not be
connected to the digital output of a CD player or any other digital device.
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