Rear panel connections

azur 840W

	1	Loudspeaker Terminals - Right				IMPORTANT!
			Impedance 4 - 8 ohms			Only change modes	Designed in London, England
		Please ensure that loudspeaker terminals are fully tightened				when unit is off.	azur 840W Class XDTM Power Amplifier
		Veuillez s'assurer que les bornes de l'enceinte sont entièrement serrées				Refer to Manual for	azur 840W Class XDTM Power Amplifier
						more information.	www.cambridge-audio.com
						Stereo	www.cambridge-audio.com
						Stereo	5
				Bridged		Mono	5
				Bridged		Mono
				only!				11
							On	11	Off
			Class 2 Wiring
					6	Mono Mode
						Bi-Amp		Power AC
						Bi-Amp
						BridgedBridged		10
		Balanced Audio - Right		Unbalanced		Use Left Input for
		Balanced Audio - Right		Unbalanced		Bridged / Bi-Amp
		Input	Loop Output	Audio - Right		operation.
				Input
In	Loop					Right
In	Loop				Input Type
						Balanced
							Power Rating: 220 - 230V AC ~ 50/60Hz
	1 = Ground						Max Power Consumption: 2400W
	2 =						Max Power Consumption: 2400W
	3 =
				Loop Output	Unbalanced
			2	3		4	CAUTION	AVIS	ACHTUNG
							Risk of electric	Risque de choc	Vorm öffnen
							shock.	electrique.	des gerätes.
							Do not open.	Ne pas ouvrir.	Netzstecker ziehen.

N1863

AЯ46

Loudspeaker Terminals - Left

Impedance 4 - 8 ohms

		Please ensure that loudspeaker terminals are fully tightened		1
		Veuillez s'assurer que les bornes de l'enceinte sont entièrement serrées		1
In
Control Bus
	Bridged
Out	only!
		Class 2 Wiring
In
Trigger
Out/Thru
IR Emitter	Unbalanced	Balanced Audio - Left
In	Audio - Left	Input	Loop Output
	Input
Left				In	Loop
Input Type				In	Loop
Balanced
					1 = Ground
					2 =
					3 =
Unbalanced	Loop Output

4This device complies3 with part 15 of the FCC Rules. Operation 2is 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 operationManufactured in an ISO9001 approved facility

ENGLISH

1 Loudspeaker terminals

6 Mono mode switch

For normal wiring, connect the wires from your left channel loudspeaker to the LEFT + & - terminals, and the wires from the right channel loudspeaker to the RIGHT + & - terminals. In each case, the red terminal is the positive output and the black terminal is the negative output.

Other dual mono schemes are also possible if two 840Ws are used. Refer to later sections of this manual for more information.

Use speakers with a nominal impedance of between 4-8 ohms. Care should be taken to ensure no stray strands of wire short the loudspeaker outputs together. Please ensure that the loudspeaker terminals have been tightened completely to provide a good electrical connection. It is also possible for the sound quality to be affected if the screw terminals are loose.

When Mono mode has been selected, switches the 840W between Bi- Amped Mono and Bridged Mono. Refer to later sections of this manual for more information.

7Control Bus

In - Allows un-modulated commands from multi-room systems or other components to be received by the unit.

Out - Loop out for Control Bus commands to another unit.

The 840W can also be switched between On and Standby mode by connecting the Control Bus output of an 840E pre-amplifier to the Control Bus input of the 840W. Refer to the ‘Power syncing’ section of this manual for more information.

Audio input types

The 840W features either unbalanced (phono/RCA) or balanced (XLR) input connections. Either type may be used but not both at the same time. The balanced connection is the higher quality option and can reject noise and interference in the cable when used with other equipment that supports this function. An XLR connector is wired Pin 1 - Ground; Pin 2 - Hot (in-phase); Pin 3 - Cold (phase-inverted).

Use the Left and Right Input Type switch (Item 4) to select the connection type you wish to use. When using either the balanced or unbalanced input, make sure that no cables or equipment are connected to the unused input, as this may degrade operation. The unused input does not need to be terminated and this should not be done.

2Balanced Audio

For connection to the balanced XLR outputs of suitable pre-amplifiers that have this kind of output (such as our own 840E model). The pre- amplifier used should be capable of providing at least 1V rms of output per phase (i.e. at both of + and – terminals of the XLR, more is also fine). Nearly all modern pre-amplifiers fulfill this requirement.

8Trigger In, Out/Thru

For Custom Install use, the 840W can be turned on and off (i.e. brought in and out of Standby mode) by the presence of 5-12V DC at the Trigger input. A trigger input will also produce an internally generated 12V DC trigger output at the Output/Thru connection. Turning the 840W on from the front panel also produces a 12V DC trigger output at the Output/Thru connection. This can be used to turn on/Standby other connected power amplifiers or other equipment if desired. Refer to the ‘Power syncing’ section of this manual for more information.

9IR (Infra-Red) Emitter In

Allows modulated IR commands from multi-room systems or IR repeater systems to be received by the unit. Commands received here are not looped out of the Control Bus. Refer to the ‘Custom installation’ section for more information.

10AC power socket

Once you have completed all connections to the unit, plug the AC power cable into an appropriate mains socket then switch on. Your unit is now ready for use.

3 Unbalanced Audio	11	Power On/Off

For connection to the normal (single ended) RCA/Phono outputs of a

suitable pre-amplifier (such as our own 840E model). The pre-amplifier

Switches the unit on and off. If the 840W is not going to be used for long periods of time it should be turned off using this switch.

used should be capable of providing at least 1V rms of output (more is fine). Nearly all modern pre-amplifiers fulfil this requirement.

4Input Type switch

Use to select a balanced or unbalanced connection type for the input.

5Stereo/Mono mode switch

Switches the 840W between ‘normal’ Stereo operation (where one 840W is used for a pair of speakers) and Mono operation (where two 840W’s are used one for each speaker). Refer to later sections of this manual for more information.

Azur 840W specifications

The Cambridge Audio Azur 840W is a high-performance power amplifier that exemplifies the cutting-edge technology and craftsmanship that the brand is known for. Designed to deliver a dynamic and engaging audio experience, the 840W is ideal for audiophiles who demand excellence in sound reproduction.

One of the standout features of the 840W is its robust construction. The amplifier is housed in a solid chassis that minimizes unwanted vibrations, ensuring that the sound remains clear and uncolored. Its sleek design not only adds elegance to any audio setup but also incorporates functional elements that enhance performance.

The Azur 840W boasts an impressive power output of 200 watts per channel at 8 ohms, and this doubles to 400 watts per channel at 4 ohms. This high power output allows for the amplification of even the most demanding speakers, delivering a controlled and powerful soundstage. The advanced toroidal transformer design ensures high efficiency and low levels of distortion, which is crucial for maintaining audio fidelity.

Cambridge Audio incorporates innovative technologies such as the Class XD amplification in the 840W. This hybrid technology combines the efficiency of Class D amplification with the sonic qualities of Class A/B design. As a result, users benefit from a clean and detailed sound with minimal distortion, allowing them to experience their music as intended by the artists.

The amplifier features a fully balanced design, including balanced XLR inputs that reduce noise and interference, especially in longer cable runs. This enables users to connect high-quality sources without compromising audio integrity. Additionally, the speaker outputs are designed to accommodate various types of speaker configurations, providing flexibility in setup.

Another notable characteristic of the Azur 840W is its thermal management system. The amplifier uses an efficient heat sink design along with a refined ventilation system that helps keep operating temperatures low, thereby extending the lifespan of the components and ensuring reliable performance during prolonged listening sessions.

The 840W is also easy to integrate into existing systems, thanks to its smart design. The front panel incorporates an informative display and intuitive controls, making it user-friendly.

In summary, the Cambridge Audio Azur 840W is a powerhouse that delivers exceptional performance with advanced technology, making it a standout choice for those seeking high-fidelity audio amplification. With its robust build, innovative Class XD technology, and versatile connectivity options, the Azur 840W is well-equipped to elevate any audio experience.

azur 840W