Troubleshooting

There is no power

Ensure the AC power cord is connected securely.

Ensure the plug is fully inserted into the wall socket and is switched on. Check fuse in the mains plug or adaptor.

There is no sound

Make sure the unit is not in Standby mode.

Check that source component is properly connected.

Check that TAPE MON is not switched on (unless tape input is required). Check that your speakers are properly connected.

If using Speaker B terminals check they are switched on. Make sure unit is not in mute mode.

There is no sound on one channel

Ensure that balance control is in the correct position. Check speaker connections.

Check interconnects.

There is a loud buzz or hum

Check turntable or tone arm for ground and connection lead fault. Ensure no interconnects are loose or defective.

Ensure that your tape deck/turntable is not too close to the amplifier.

Unable to make or play tape recordings

Check that TAPE MON and TAPE OUT have been connected correctly.

There is weak bass or diffused stereo imaging

Ensure that speakers are not wired out of phase.

Message on display flashing

See section on CAP5 protection system.

The remote handset will not function

Check that the batteries have not expired.

Ensure that nothing is blocking the remote sensor.

For more frequently asked questions (FAQ’s), technical advice and information on getting the most out of your 840A V2, please visit the Support section on Cambridge Audio’s website: www.cambridgeaudio.com/support.php

For all servicing, in or out of warranty, please contact your dealer.

 

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840A V2

 

Technical specifications

 

ENGLISH

Power Output

120W RMS into 8 Ohms

 

 

200W RMS into 4 Ohms

 

THD (unweighted)

< 0.001% 1 kHz

 

 

 

at 80% of rated power

 

 

< 0.01% 20 Hz - 20 kHz

 

 

at 80% of rated power

 

Frequency Response

10 Hz - 50 kHz +/- 1 dB

 

S/N ratio (ref 1W/8 Ohm)

> 93 dB

 

 

Input impedances

Input 1 (balanced) 20 kOhm

 

 

Inputs 2-7 20 kOhm

 

 

 

Tape Input 20 kOhm

 

 

Power Amp damping

> 110 at 1 kHz

 

 

factor

 

 

 

Max power consumption

800W

 

 

Minimum power

Active (no signal) 70W

 

consumption

Standby 7W

 

 

Bass & Treble controls

Shelving type

 

 

 

Max bass boost/cut +/- 10 dB at 10 Hz

 

 

Max treble boost/cut +/- 7.5 dB at 20 kHz

 

Dimensions (H x W x D)

115 x 430 x 385mm

 

 

 

(4.5 x 16.9 x 15.2”)

 

 

Weight

15.0kg (33Lbs)

 

 

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Cambridge Audio 840A V2 user manual Troubleshooting, Technical specifications

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.