Front panel controls

azur 840A

Class XD Integrated Amplifier

8

 

 

 

 

 

 

 

11

Standby/On

Phones

Speaker A/B

Mode

 

Bass Treble

Direct

 

 

 

 

 

6

7

 

 

1

2

3

4

5

9

10

Volume

1 Standby/On

8 Display

Switches the unit between Standby mode (indicated by dim power LED) and On (indicated by bright power LED). Standby is a low power mode where the power consumption is less than 10 Watts. The unit should be left in Standby mode when not in use.

Note: As default the 840A V2 ramps the volume up or down when switched on and when going into Standby mode. This feature can be turned off if desired; please refer to the ‘Amplifier setup’ section of this manual for more information.

2Phones

Allows for the connection of stereo headphones with a ¼" Jack plug. Headphones with an impedance of between 32 and 600 ohms are recommended. When the headphones are connected, the loudspeaker relays are released switching off the output to the loudspeakers (speakers A and B).

3Speaker A/B

Press to scroll through the speaker sets connected to the loudspeaker terminals on the back panel (speaker sets A, B or A and B). This can be used for listening to an extra set of loudspeakers in another room.

Please note that care should be taken when choosing speakers if two loudspeakers are going to be used on each channel. If the combined resistance measured on the loudspeaker terminals is too low the amplifier may not switch out of Standby mode until a suitable load resistance is detected. For more information refer to the CAP5 section of this manual.

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.

4Mode

Press to switch between Volume and Balance modes. Press and hold to to enter the 840A V2 System Configure menu.

LCD used to control the 840A V2. Please refer to the ‘Operating instructions’ and ‘Amplifier setup’ section of this manual for more information.

9Bass and Treble

Press to release and rotate to allow subtle adjustments to the tonal balance of the sound.

10Direct

This control gives the audio signal a more direct path to the power amplifier stage of your amplifier, bypassing the tone control circuits for the purest possible sound quality.

The Bass/Treble icon ( ) appears in the display when the bass and treble circuit is active (in circuit) and is not present when they are bypassed.

Note: Direct can be set on or off individually for each input. This settting is recalled each time a source is selected.

11Volume

Use to increase/decrease the level of the sound from the outputs of the amplifier. This control affects the level of the loudspeaker output, the pre-amp output and the headphone output. It does not affect the Tape Out connections.

As the 840A V2 uses a very high quality passive resistor ladder switched by relays to achieve volume and balance, audible control clicks can be heard from the unit when the volume or balance is adjusted.

The Volume control is also used in navigating the 840A V2 System Configure menus on the front panel display.

5Infrared sensor

Receives IR commands from the supplied Azur remote control. A clear unobstructed line of sight between the remote control and the sensor is required.

6& 7 Input select buttons

Push the appropriate input selection button to select the source component that you wish to listen to (highlighted by a solid circle on the display). The signal selected is also fed to the Tape Out sockets so that it may be recorded. The input should not be changed whilst recording (but the recorded signal can be checked using the tape input Tape Monitor).

Please refer to the ‘Operating instructions’ section of this manual for more information on some functions of these buttons.

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Cambridge Audio 840A V2 user manual Front panel controls

840A V2 specifications

The Cambridge Audio 840A V2 is a high-end integrated amplifier that stands out in the realm of audio equipment, delivering both exceptional sound quality and sophisticated design. This amplifier embodies the brand's philosophy of providing a genuine listening experience that captures the essence of music.

One of the key features of the 840A V2 is its Class XD amplification technology. This unique design combines the best aspects of Class A and Class AB amplification, allowing for low distortion while maintaining high efficiency. This ensures that the amplifier can deliver potent power to drive a wide range of speakers without compromising on audio fidelity. The Class XD design allows the amplifier to operate in Class A mode at low power levels, delivering warmth and detail, while switching to Class AB at higher power levels for greater efficiency and headroom.

The 840A V2 boasts a robust construction that not only enhances durability but also minimizes resonance and vibration, contributing to cleaner sound reproduction. With a meticulous attention to detail, the amplifier features a symmetrical layout, which aids in reducing unwanted noise and crosstalk. The use of premium components throughout the signal path ensures that the audio remains true to the source.

One of the most appealing aspects of the 840A V2 is its extensive connectivity options. It includes multiple RCA inputs, a dedicated phono stage for vinyl enthusiasts, and balanced XLR inputs, making it versatile enough to accommodate various audio sources. The headphone output is powered by a dedicated circuit, ensuring that headphone listening experiences are equally exquisite.

Additionally, the 840A V2 incorporates a high-quality remote control that allows users to conveniently adjust volume levels and switch between sources from a distance. The front panel features a clear display and intuitive controls which makes operating the amplifier straightforward, even for those who might be new to high-fidelity audio equipment.

In summary, the Cambridge Audio 840A V2 integrated amplifier is an exemplary piece of audio engineering. With its Class XD technology, premium build quality, versatile connectivity, and user-friendly design, it offers audiophiles and casual listeners alike the opportunity to experience their music in an immersive and dynamic way. Whether paired with high-end speakers or used in a modest setup, the 840A V2 delivers a performance that reflects Cambridge Audio’s commitment to sound excellence.