Rear Panel Connections

PowerCAP5

Multi-Room

azur 640A Integrated Amplifier V2.0

Designed in London, England

www.cambridge-audio.com1	On	Off
Max Power Consumption: 700W
Mains Voltage Selector Switch (50 / 60Hz)

Power AC

Protection LED
indicators:		ohms 8	- 4 Impedance
Right	A	Left	Right	B	Left
Fault requiring
service (DC)
Over temperature
Temporary overload			4
Loudspeaker short

					IR1	IR3
	IR Emitter	PSU	Keypad 1	Keypad 2			Control Bus
	IR Emitter	PSU	Keypad 1	Keypad 2
	In	In					In	Out
5								7
			International Patent Pending LeisureTech Electronics Pty Ltd		IR2	IR4
Out-Pre	In Tape	1 Out Rec	2 Out Rec	MD / AV	DVD	DAB / Tuner	CD	Aux

Manufactured in an ISO9002 approved facility

Vol	Auto
	Clipping
Please refer to		Right	A	Left	Right	B	Left
your User's Manual

for more information	Impedance 4 - 8 ohms

Loudspeaker Terminals

Important

Please ensure that loudspeaker terminals are fully tightened

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

Left								Left
8	9		10			11
Right								Right
Pre-Out	Tape In	Rec Out 1	Rec Out 2	AV / MD	DVD	Tuner / DAB	CD	Aux

Caution Risk of electric shock. Do not open. Avis Risque de choc electrique. Ne pas ouvrir. Achtung Vorm öffnen des gërates. Netzstecker ziehen.

1Power On/Off

Switches the unit on and off.

2Mains voltage selector switch

Switches the mains voltage between 115V and 230V. For use by installer/dealer only.

3AC power socket

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

4Loudspeaker terminals

Two sets of loudspeaker terminals are available, A (main loudspeaker terminals) and B (secondary switchable loudspeaker terminals).

6Azur integrated amplifier

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.

Care should be taken to ensure no stray strands of wire are shorting speaker outputs together. Please ensure that the loudspeaker terminals have been tightened adequately to provide a good electrical connection. It is possible for the sound quality to be affected if the screw terminals are loose.

Note: When using one pair of speakers, use speakers with a nominal impedance of between 4-8 ohms. When using two pairs of speakers, use speakers with a nominal impedance of between 6-8 ohms each.

5IR (Infrared) Emitter In

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

640A, 540A specifications

Cambridge Audio has established itself as a formidable force in the realm of high-fidelity audio equipment, and the 540A and 640A amplifiers exemplify the company's commitment to delivering exceptional sound quality at a competitive price point. These integrated amplifiers, known for their detailed sound reproduction and robust performance, cater to audiophiles who appreciate both quality and value.

The Cambridge Audio 540A is part of the company's entry-level range, designed for music enthusiasts seeking an affordable yet high-performance amplifier. The 540A boasts a powerful 50 watts per channel output, allowing it to drive a variety of speaker types with ease. The design emphasizes simplicity and user-friendliness, featuring straightforward controls and a sleek finish that fits well in any audio setup.

One of the standout features of the 540A is its dual-mono circuit design. This architecture minimizes crosstalk and signal interference, allowing for a cleaner, more precise sound. It also incorporates high-quality components, including a toroidal transformer, which contributes to improved efficiency and reduced distortion. Additionally, the amplifier features a range of inputs, including multiple line-level options, making it versatile enough to accommodate various audio sources such as CD players, turntables, and streaming devices.

On the other hand, the 640A is an upgrade that builds upon the strengths of the 540A. With a more powerful output of 75 watts per channel, the 640A is designed for users who demand more from their audio systems. This amplifier incorporates an improved power supply and enhanced components, further refining the sound quality. The 640A also introduces features such as a high-quality phono stage, enabling direct connection to turntables without the need for separate equipment.

Both amplifiers incorporate Cambridge Audio's dedication to quality with a focus on analog circuitry. This is particularly evident in the warm, rich sound signature that these amplifiers provide, making them ideal for a range of music genres. The build quality is robust, with a solid chassis designed to reduce vibration and resonance, ensuring a stable platform for audio performance.

In summary, the Cambridge Audio 540A and 640A amplifiers offer a compelling combination of sound quality, versatile connectivity options, and robust design. Whether you are an entry-level audiophile or a seasoned listener looking for an upgrade, these amplifiers provide an engaging listening experience that highlights the nuances and details of your favorite music. With Cambridge Audio's unwavering focus on high-fidelity sound, both models are captivating choices that continue to impress users worldwide.

Cambridge Audio 540A, 640A user manual Rear Panel Connections

Models: 640A 540A