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Input (Source) connections
Inputs 1 and 2 on the 840E feature either unbalanced (phono/RCA) or
balanced (XLR) connections. The 840E is designed to work at its highest
performance when a balanced interconnect is used.
The diagrams below shows the 840E pre-amplifier connected to an Azur
840C CD player in unbalanced (Figure 1) and balanced (Figure 2)
configurations. The 840E can also be connected to non Cambridge
Audio sources with balanced outputs.
Balanced connections in an audio system are designed to reject
electrical noise, from power wiring etc, and also the effects of noise
currents flowing through ground connections. The basic principle of
balanced interconnection is to get the signal you want by subtraction,
Figure 1: Unbalanced input
840E
Power
Trigger
IR Emitter
Designed in London, England
In
Out/Thru
In
In
azur 840E Pre-Amplifier
On
Off
Power Rating
:
230V AC ~ 50Hz
Max Power Consumption
:
36W
www.cambridge-audio.com
CAUTION
AVIS
ACHTUNG
Risk of electric
Risque de choc
Vorm öffnen
shock.
electrique.
des gerätes.
Do not open.
Ne pas ouvrir.
Netzstecker ziehen.
Out
Pre
Balanced Pre Out
L
L
R
R
Power AC
GND
Pre Out
Right
Left
Manufactured
in an ISO9001
approved facility
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) This device may not cause harmful interference; 2) This device must accept any interference, including interference that may cause undesired operation.
3098092
Conforms to ANSI/UL STD 60065
7th Edition 2003 Rev 2006/03/20
Certified to CAN/CSA STD C22.2
No. 60065-03
840C
Power syncing (On/Standby control)
When going in/out of Standby mode the Azur 840E pre-amplifier can (if
desired) automatically control the 840W when connected via the Control
Bus sockets (the Control Bus sockets are colour-coded orange on the
rear panels of compatible Azur models). For this feature to work the
units must be connected together by RCA/phono leads. No futher setup
is necessary.
Connect the Control Bus Out from the 840E to the Control Bus In on the
840W. Continue the chain to other Azur models if it is required to sync
more units (refer to the 840E's own manual for more information as this
requires some setup).
8
Multi-Room
Input 2 Balanced Audio
Input 1 Balanced Audio
Keypad 1
IR1
IR3
Control Bus
International Patent Pending
LeisureTech Electronics Pty Ltd
Out
PSU
In
Keypad 2
IR2
IR4
Right
Left
Right
Flat / 200Hz L.P.
2
Out
Rec
1
Out
Rec
In
Rec
7
Input
6
Input
5
Input
4
Input
3
Input
2
L
R
Sub Out
Rec Out 2
Rec Out 1
Rec In
Input 7
Input 6
Input 5
Input 4
Input 3
Input 2
(Unbalanced)
Phono/RCA
Loudspeaker Terminals - Right
Impedance 4 - 8 ohms
Please ensure that loudspeaker terminals are fully tightened
Veuillez s'assurer que les bornes de l'enceinte sont entièrement serrées
Bridged
only!
Class 2 Wiring
Balanced Audio - Right
Unbalanced
Audio - Right
Input
Loop Output
Input
In
Loop
1 = Ground
2 =
3 =
Loop Output
Power
Trigger
Designed in London, England
In
Out/Thru
azur 840E Pre-Amplifier
On
Off
Power Rating
:
230V AC ~ 50Hz
Max Power Consumption
:
36W
www.cambridge-audio.com
CAUTION
AVIS
ACHTUNG
Risk of electric
Risque de choc
Vorm öffnen
shock.
electrique.
des gerätes.
Do not open.
Ne pas ouvrir.
Netzstecker ziehen.
Out
Pre
L
L
R
R
Power AC
GND
Pre Out
Manufactured
in an ISO9001
approved facility
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) This device may not cause harmful interference; 2) This device must accept any interference, including interference that may cause undesired operation.
using a three-wire connection. One signal wire (the hot or in-phase)
carries the normal signal, while other (the cold or phase-inverted)
carries an inverted version. The balanced input senses the difference
between the two lines to give the wanted signal. Any noise voltages that
appear identically on both lines (these are called common-mode
signals) are cancelled by the subtraction.
Make sure the Balanced/Unbalanced switch for Inputs 1 and 2 are set
to the connection type you wish to use.
Figure 2: Balanced input
840E
GND
Power
azur 840E Pre-Amplifier
On
Off
Power Rating
Max Power Consumption
www.cambridge-audio.com
CAUTION
AVIS
ACHTUNG
Left
Balanced
Risk of electric
Risque de choc
Vorm öffnen
shock.
electrique.
des gerätes.
Do not open.
Ne pas ouvrir.
Netzstecker ziehen.
Input
1
Input
L
Unbalanced
Input 1
Balanced
R
Power AC
Unbalanced
Input 2
Input 1
(Unbalanced)
GND
840C
Note: The 840E features a Trigger Out which can alternatively be used
to control the 840W's Standby/On status if desired. Again, the
procedure is simply to connect the two units together (using a 3.5mm to
3.5mm mono mini-jack lead in this case).
Control Bus is the recommended method when using an 840E and other
Cambridge Audio equipment with Control Bus In/Out.
Trigger In/Out can be useful if the 840W (and indeed 840E) is desired
to be controlled by other equipment that features trigger outputs
(Custom install and/or Multi-Room Systems etc).
IMPORTANT!
Only change modes
Designed in London, England
when unit is off.
Refer to Manual for
azur 840W Class XD
TM
Power Amplifier
more information.
In
www.cambridge-audio.com
Stereo
Control Bus
Mono
Bridged
Out
only!
On
Off
In
Mono Mode
Power AC
Trigger
Bi-Amp
Out/Thru
Bridged
Bridged
Use Left Input for
IR Emitter
Unbalanced
Bridged
/ Bi-Amp
In
Audio - Left
operation.
Input
Right
Left
Input Type
Input Type
Balanced
Balanced
Balanced
Power Rating
:
230V AC ~ 50Hz
Max Power Consumption
:
1600W
N1863
Unbalanced
Unbalanced
Loop Output
CAUTION
AVIS
ACHTUNG
Risk of electric
Risque de choc
Vorm öffnen
shock.
electrique.
des gerätes.
AЯ 46
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
Do not open.
Ne pas ouvrir.
Netzstecker ziehen.
2) This device must accept any interference, including interference that may cause undesired operation
Multi-Room
Keypad 1
IR1
IR3
International Patent Pending
IR Emitter
Control Bus
LeisureTech Electronics Pty Ltd
In
In
Out
PSU
In
Keypad 2
IR2
IR4
Balanced Pre Out
Flat / 200Hz L.P.
2
Out
Rec
1
Out
Rec
In
Rec
7
Input
6
Input
L
R
Right
Left
Sub Out
Rec Out 2
Rec Out 1
Rec In
Input 7
Input 6
Multi-Room
Keypad 1
Trigger
IR Emitter
Control Bus
International Patent Pending
Designed in London, England
LeisureTech Electronics Pty Ltd
In
Out/Thru
In
In
Out
PSU
In
:
230V AC ~ 50Hz
:
36W
Keypad 2
Out
Pre
Balanced Pre Out
Flat / 200Hz L.P.
2
Out
Rec
1
Out
Rec
In
Rec
L
L
L
R
R
R
GND
Pre Out
Right
Left
Sub Out
Rec Out 2
Rec Out 1
Rec In
Manufactured
in an ISO9001
approved facility
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 1) This device may not cause harmful interference; 2) This device must accept any interference, including interference that may cause undesired operation.
3098092
Conforms to ANSI/UL STD 60065
7th Edition 2003 Rev 2006/03/20
Certified to CAN/CSA STD C22.2
No. 60065-03
840W
Loudspeaker Terminals - Left
Impedance 4 - 8 ohms
Please ensure that loudspeaker terminals are fully tightened
Veuillez s'assurer que les bornes de l'enceinte sont entièrement serrées
Class 2 Wiring
Balanced Audio - Left
Input
Loop Output
In
Loop
1 = Ground
2 =
3 =
Manufactured in an ISO9001 approved facility
1) This device may not cause harmful interference
840E
Input 2 Balanced Audio
Input 1 Balanced Audio
GND
Right
Left
Right
Left
Balanced
5
Input
4
Input
3
Input
2
Input
1
Input
Unbalanced
L
Input 1
Balanced
R
Unbalanced
Input 2
Input 5
Input 4
Input 3
Input 2
Input 1
(Unbalanced)
(Unbalanced)
Input 2 Balanced Audio
Input 1 Balanced Audio
IR1
IR3
GND
IR2
IR4
Right
Left
Right
Left
Balanced
7
Input
6
Input
5
Input
4
Input
3
Input
2
Input
1
Input
L
Unbalanced
Input 1
Balanced
R
Unbalanced
Input 2
Input 7
Input 6
Input 5
Input 4
Input 3
Input 2
Input 1
(Unbalanced)
(Unbalanced)
XLR
GND
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