Download CXA Users Manual English - Reference

Connections
When designing our amplifiers we include features that allow you to connect
your system in various ways. The inclusion of features such as Pre-Out and
Speaker B connections mean that you can flexibly configure your system
depending on your requirements.
Basic connections
Preamp Out connections
The Preamp Out sockets are for connecting to the input sockets of a power
amplifier or active subwoofer. The diagram below shows how to connect the
amplifier to an active subwoofer via the Line In inputs on the subwoofer.
The diagram below shows the basic connection of your amplifier to a CD
player using the D3 coaxial digital input source and a pair of loudspeakers.
Line
In
Lift
Out
Gnd
www.cambridgeaudio.com
In
Designed & Engineered in UK
Made in China
CXA80 Integrated Amplifier
Out
In
Left
Right
(Unbalanced)
Toslink
Optical In
D3
D2
Right
A1
Left
Balanced audio connections (CXA80 only)
The diagram below shows how to connect the CXA80 to the CXN Network
player using the Balanced Audio inputs via three pin XLR connectors.
The CXA80 can also be connected to non-Cambridge Audio sources with
balanced outputs.
Designed & Engineered in UK
Made in China
Toslink
Optical
Gnd
CXA80 Integrated Amplifier
www.cambridgeaudio.com
Digital Outputs
Right
IR In
Lift
Out
In
USB Audio In
Power Rating: 220–230V AC ~ 50/60Hz
Max Power Consumption: 750W
BT100
Control Bus
Right
Left
Wi-Fi Dongle
D2
A1
Left
In
Out
Gnd
Voltage Rating: 100-230V AC ~ 50/60Hz
Rated Power Consumption: 30W
USB
For local media
Ethernet
D2
S/P DIF Co-axial
D1
Toslink Optical
Digital Inputs
S/P DIF Co-axial
Toslink Optical
Digital Outputs
Right
Left
Lift
Ground/Lift
Switch
USB Audio In
Balanced Audio Output
Line Output
Toslink
Optical In
Out
In
Left
Right
(Unbalanced)
A4
A3
A2
(Unbalanced)
Right
Pre-out
(Balanced)
Sub-Out
D1
(Balanced)
Left
BT100
Control Bus
USB Audio In
Left
Right
Ground/Lift
Switch
Power AC
Right
(Unbalanced)
Control Bus
IR In
USB
D3
A2
D1
(Balanced)
For local media
In
A3
Designed & Engineered in UK
Made in China
Ethernet
Out
A4
CXN Network Player
Digital Inputs
Lift
Pre-out
Digital Outputs
www.cambridgeaudio.com
Toslink
Optical In
D2
Toslink
Optical In
USB Audio In
Gnd
CXA80 Integrated Amplifier
Power Rating: 220–230V AC ~ 50/60Hz
Max Power Consumption: 750W
S/P DIF
Co-axial In
Sub-Out
Power AC
Wi-Fi Dongle
Designed & Engineered in UK
Made in China
D3
Balanced Audio Output
The Speaker B connections on the back of the amplifier allow for a second set
of speakers to be used (i.e. speakers located in another room). The Speaker
A/B button on the front panel scrolls through the selection of speaker A only,
speaker B only, and speaker A and B together.
Toslink
Optical In
(Unbalanced)
Power AC
Speaker B connections
S/P DIF
Co-axial In
Ground/Lift
Switch
Left
S/P DIF
Co-axial
Control Bus
Left
Right
In
Out
(Unbalanced)
A1
Left
Control Bus
Out
In
A2
Right
Line Output
A3
(Unbalanced)
Right
Right
Mains Voltage Selector Switch:
100-120V/220-240V AC~50/60Hz
A4
(Balanced)
IR In
Pre-out
A2
Digital Outputs
Sub-Out
A3
(Balanced)
Left
(Unbalanced)
Left
Right
Right
D1
(Balanced)
BT100
Control Bus
Left
USB Audio In
Power AC
A4
Toslink
Optical In
Ground/Lift
Switch
Power Rating: 220–230V AC ~ 50/60Hz
Max Power Consumption: 750W
Power AC
S/P DIF
Co-axial In
Pre-out
D1
(Balanced)
Left
In
Sub-Out
Out
Out
Left
In
Out
Lift
In
Gnd
Toslink
Optical In
Right
Designed & Engineered in UK
Made in China
D2
(Balanced)
Right
www.cambridgeaudio.com
Toslink
Optical In
D3
Left
BT100
Control Bus
USB Audio In
Power AC
CXA80 Integrated Amplifier
S/P DIF
Co-axial In
Ground/Lift
Switch
Power Rating: 220–230V AC ~ 50/60Hz
Max Power Consumption: 750W
Right
A1
Left
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, 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.
The CXA80 is designed to work at its highest performance when a balanced
interconnect is used.
Note: To select the balanced input on the CXA80, press the A1 button twice
on the front panel or on the remote control so that the A1 light on the front
panel display lights up Orange. Repeatedly pressing the A1 button will toggle
between balanced and unbalanced inputs.
8