Cambridge Audio Azur 740A user manual Amplifier setup continued, Volume display, Input gain trim

Amplifier setup continued

Volume display

Mode

Volume

To change the volume display from decibels (-84 to 0dB) to arbitrary volume units (0 to 72 units) select VOL DB in the System Configure menu. Press the input select button to turn off the volume in decibels. Press the Mode button to exit.

Input gain trim

The relative levels of the inputs can be adjusted by gain trim. This allows each to be adjusted so that each sounds the same in terms of average loudness when you switch between them. Pick the loudest sounding source and trim its level until it matches the average perceived level of the others. Repeat this process if other sources also stand out as louder than the average.

Mode

Volume

To set the input gain trim for each source, select INP TRIM in the System Configure menu. Select the input required and use the volume control to set the gain between 0 and -12 dB (the available range is restricted if the volume is set very low). Press the Mode button to exit.

Fixed level inputs

Any input of the 740A is able to be set for fixed gain. Whenever this input is selected the gain will automatically go to this value and will not be adjustable by the volume control. This feature allows the 740A to be effectively used as a stereo power amplifier (for that selected input only). For example, as well as operating as a pure stereo amplifier, the 740A can provide the amplification for the front left and right channels of a surround sound setup with an AV receiver providing amplification for the other channels and controlling the overall system volume.

When listening in stereo use the 740A and connected stereo sources as normal for best possible sound quality. For surround sound, select the fixed level input you have chosen on the 740A and now use the AV receiver to control the volume, select connected surround sound sources etc. You may wish to re-name the fixed level input as “A/V mode” or similar on the 740A. Make connections as below, the left and right preamp outputs of the AV receiver connect to the fixed gain input chosen on the 740A. As the gain can be fixed to any value it is easy to match the level of the 740A to that of the other AV channels.

On/Off control menu

When going in/out of Standby mode the 740A can automatically turn on and off other connected Cambridge Audio Azur models that have control bus sockets. For this feature to work the units must be connected together (see diagram) by RCA/phono leads. The sockets are colour- coded orange on the rear panels of compatible Azur models. Loop out from the 740A Control Bus Out to the Control Bus In on another Azur model (e.g. 740C). Continue the chain to other Azur models if required.

640T V2.0

Manufactured in an

	ISO9002 approved facility
					Output Line			Designed in London, England	Type-F
Caution	On Power Off	Control Bus		IR Emitter			Digital Outputs	azur 640T DAB/FM Tuner V2.0	Ohms 50
									Input
Avis		In	Out	In	Left	Left		Power Rating: 230V AC ~ 50Hz	Aerial
								Max Power Consumption: 15W
Achtung
					Right	Right		www.cambridge-audio.com
									Aerial
					Line Output	Toslink	S/P DIF		Input
									50 Ohms
						Optical	Co-axial	N1863	F-Type

740C

Manufactured in an

Power

ISO9002 approved facility

Incorporating Q5 from:

This device complies with

Designed in London, England

ANAGRAM

TECHNOLOGIES

part 15 of FCC rules

On

Off

azur 740C Upsampling

Caution

Compact Disc Player

Output Line

Power Rating: 230V AC ~ 50Hz

Max Power Consumption: 25W

Avis

IR Emitter

Control Bus

Digital Outputs

Digital Inputs 1

Digital Inputs 2

Left

Class 1 Laser Product

Power AC

Left

Luokan 1 Laserplaite

Klass 1 Laserapparat

Achtung

Right

Right

In

In

Out

S/P DIF

Toslink

S/P DIF

Toslink

S/P DIF

Toslink

Line Output

Co-axial

Optical

Co-axial

Optical

Co-axial

Optical

AЯ46

www.cambridge-audio.com

Power

PassThru

Multi-Room

Loudspeaker Terminals

IR1

IR3

Designed in London, England

IR

Control Bus

On

Off

ControlBus

PanelFront

Reserved

Reserved

In

In

In

Out

Right

Left

IR Emitter

PSU

Keypad 1

Keypad 2

azur 740A Integrated Amplifier

A

A

Off

Caution

Power Rating: 230V AC ~ 50Hz

On

Max Power Consumption: 750W

IR2

IR4

Avis

Out Pre

In Tape/Rec

2 Out Tape/Rec

1 Out Tape/Rec

5 Input

4 Input

3 Input

2 Input

1 Input

Power AC

N1863

Achtung

B

B

Left

Left

Right

Left

Right

Right

AЯ46

Impedance 4 - 8 ohms one pair, 6 - 8 ohms per pair if two pairs

Pre Out

Tape/Rec In

Tape/Rec Out 2

Tape/Rec Out 1

Input 5

Input 4

Input 3

Input 2

Input 1

Important

(Input 6)

Please ensure that loudspeaker terminals are fully tightened

www.cambridge-audio.com

Veuillez s'assurer que les bornes de l'enceinte sont entièrement serrées

740A

Now while the 740A is on press and hold the Standby/On button until ON/OFF CTR appears on the display:

Standby/On

Volume

Select the connected Azur models by pressing the appropriate input select button. For example, CA XXXC for an Azur CD player (540C V2, 640C V2), CA XXXD for an Azur DVD player, CA DAB T for an Azur DAB tuner etc.

Press ON & OFF to scroll through the options of ON (turns all Azur units on only), OFF (turns all Azur units into Standby only) or ON & OFF (turns all Azur units on and into Standby mode). Press OK to confirm and exit.

L

SW

SL

C

740A

L R

AV receiver

SB

R

Stereo

sources

Surround

sound sources

SR

To set a fixed volume for a source, select FIXED INP in the System Configure menu:

Mode

Volume

Select the input required and set the fixed gain using the volume control (the OFF setting does not disable the input but leaves the input gain subject to the volume control which is the default setting). When a source has a fixed input, the balance is always set to neutral. Press the Mode button to exit.

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