Multi-room connections, PS5 | Cambridge Audio 840A V2 specification

Multi-room connections

The 840A V2 features Incognito Ready/A- BUS Ready outputs, allowing multi-room capability. One or two amplified keypads

can be plugged into the 840A V2 (using CAT-5/5e cable and RJ45 plugs) to provide multi-room audio in one or two

secondary rooms or zones. The keypads are powered by an external PSU (also required) through the CAT-5/5e cables and no mains connection is required in the secondary rooms.

Speakers (e.g. SS10)
connected via	AS10
speaker cable	Passive
	Speaker
KP10-EU keypad
	AS10
	Active
	Speaker
LR10
PS5	CAT-5/5e (up to 30m / 100ft)
PS5
	840A V2

					azur 840C
					Upsampling Compact Disc Player
		IR10	Open	Play	Skip
Standby/On	Menu Select	IR10	Close	Pause Stop	Scan
			PROGRAM
Mini-jack lead					840C

The 840A V2 is Incognito Ready Type II, which means the keypads can operate independently of the amplifier in terms of volume/bass/treble etc, be independently turned on and off, and can also listen to a different source from that which is currently selected on the amplifier. However, both keypads can only listen to the same source.

A-BUS is a standard that allows compatibility between different manufacturers equipment, so A-BUS compatible keypads from other manufacturers can also be used. If used with our own Incognito KP10 keypads, there are some extra features such as the ability to change source on the 840A V2 from the keypad (EU model shown here):

Order of selection: 1. Input 1

2. Input 2

3. Input 3

4. Input 4

5. Input 5

6. Input 6 (Tape)

Connections to the 840A V2’s Incognito Ready / A-BUS Ready outputs are made by Cat-5 cable (terminated with an RJ45 jack plug). The RJ45 plug must be wired to the EIA/TIA 568A wiring standard:

Wire colours:	3.	Orange/White	6.		Orange
1. Green/White	4.	Blue		7. Brown/White
2. Green	5.	Blue/White	8.		Brown

8	7 6 5	4 3 2 1	1	2 3 4	5 6 7 8

Plug view from	View into	Gather pairs, trim	Crimp wires
contact end	socket	and insert into	securely in place
		RJ45 plug

To allow control of your source equipment from the remote rooms an IR emitter (IR10) is plugged into one of the IR outputs on the rear of the unit and then attached over the IR window of the source unit. Alternatively, on our own products that feature IR emitter Inputs, a mini- jack to mini-jack lead can be used. Commands received by the keypads can now be sent back to the source equipment via the 840A V2.

It is then possible to control the source equipment from the remote rooms by using the source equipment's own remote controls or through a learning remote. The Incognito LR10 Learning Remote can fully control the keypads, “learn” the source's remote control codes (including those from other manufacturers) and change source input on the 840A V2 etc.

On the front panel display of the 840A V2 the extra multi-room zones are indicated by a circle outline next to the input source (see Fig. 1). When listening to the same source, the circle outline and solid circle overlap (see Fig. 2).

Fig. 1 - One or both keypads are listening to a different source (Input 2) to the amplifier (Input 1).

Mode

Volume

Fig. 2 - One or both keypads are listening to the same source (Input 2) as the amplifier (Input 2).

Mode

Volume

For further details on the Incognito multi-room system please contact your local Cambridge Audio dealer or visit: www.cambridge-audio.com

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.