Front panel controls

															azur 640R
															Volume
															AV Receiver
								6							21
															21
		5	7	8	9		10	11		12	13	14	20
													Analog
		Tuner FM/AM	DVD	Video 1	Video 2	Recorder 1		Aux		CD	Recorder 2	7.1 Direct	Stereo Direct		Mute
															22
Standby / On	Phones	– Tuning +	Mode/Store		Digital Processing Options								Video 3	L Audio R	Video S-Video Optical
Standby / On	Phones	– Tuning +	Mode/Store		Digital Processing Options
1	2	3	4	Audio		Stereo	Pro Logic/Neo/		Dolby Digital/		Video		23		24
1	2	3	4	Input Type		Modes	Modes			Modes			23		24
				Input Type		Modes	DSP Surround		DTS Surround Input Type
				15		16	17			18	19
1 Standby/On									14 7.1 Direct

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

2Phones

Allows for the connection of stereo headphones with a 6.35mm/¼" Jack plug. Headphones with an impedance of between 32 and 600 ohms are recommended. Note: Plugging in headphones will automatically mute the main and pre-amp outputs and select a 2-channel stereo down-mix to be created for headphone use.

3Tuning +/-

Used to tune FM frequencies and skip presets in Tuner mode.

4Mode/Store

Press to cycle between Tuner modes and for storing presets (refer to the ‘Operating Instructions’ of this manual for more information).

5Tuner FM/AM

Press to select the tuner for output through the 640R. Once in Tuner mode also use this button to switch between FM and AM modes.

6Display

Displays the status of the unit. Also receives IR commands from the supplied Azur remote control. A clear unobstructed line of sight between the remote control and the sensor is required.

7DVD

Press to select the source equipment connected to the DVD input.

8Video 1

Press to select the source equipment connected to the Video 1 input.

9Video 2

Press to select the source equipment connected to the Video 2 input.

10Recorder 1

Press to select the recording device connected to the Recorder 1 input.

11Aux

Press to select the source equipment connected to the Aux input.

12CD

Press to select the source equipment connected to the CD input.

Press to select a 7.1, 6.1 or 5.1 source (DVD-A or SACD player etc) connected to the 7.1 Direct In sockets.

Note: The 640R remembers the audio and video input type and processing mode for each individual source input. These are recalled each time a source is selected.

15Audio input type

Press this button to toggle between analog or digital (optical/coaxial) input types for the currently selected source input.

16Stereo modes

Press to listen to a source in either digitally processed stereo or stereo and sub modes.

17Pro Logic/Neo/DSP surround modes

Press to select between various Pro Logic II/IIx, DTS Neo:6 effects for matrix encoded analog or digital material or for post-processing DD/DTS material (Note: The 640R is unable to auto-detect this kind of source material as it does not include embedded encoding type flags so manual selection is required). Also selects various DSP created surround sound modes for uncoded stereo sources.

18Dolby Digital/DTS surround modes

Press to select Dolby Digital or DTS surround modes (with suitably encoded digital source material). These modes can only be decoded from digital audio sources (via Coaxial or Optical inputs).

19Video input type

Press to select the video input type (Composite, S-Video or Component Video) you wish to use for the current source input.

20Analog stereo direct

Press to listen directly to the analog inputs for the current source with no analog to digital or DSP processing for highest possible stereo sound quality.

21Volume

Use to increase/decrease the level of the sound from the outputs of the 640R.

22Mute

Press to mute the sound from the main and pre-amp outputs of the 640R. Press again to cancel mute.

23Video 3 source button

Press to select a video camera recorder/video games console connected to the Video 3 input sockets.

	13 Recorder 2	24 Video 3 input sockets
	Press to select the recording device connected to the Recorder 2 input.	24 Video 3 input sockets
		Connect a video camera recorder/video games console to the 640R.

		Audio/Video and digital optical inputs are provided.

640Razur specifications

The Cambridge Audio 640R is a high-fidelity AV receiver that has gained recognition for its remarkable performance and sophisticated features. Engineered to deliver a premium audio experience, this receiver excels in both music and home theater applications.

One of the standout features of the 640R is its ability to handle a wide range of audio formats. With support for advanced surround sound formats such as Dolby TrueHD and DTS-HD Master Audio, the receiver is capable of producing high-definition audio that enhances the clarity and detail of films and music. The 640R also supports standard formats like Dolby Digital and DTS, making it highly versatile.

At the heart of the 640R is Cambridge Audio's proprietary components, including high-quality capacitors and resistors, designed to minimize noise and distortion. This ensures that the audio output remains clean and transparent, providing a true representation of the source material. The receiver offers a robust power output, ensuring effortless dynamic range and delivering impactful sound, whether it's a subtle dialogue or explosive action scenes.

Another key feature of the Cambridge Audio 640R is its extensive connectivity options. It boasts multiple HDMI inputs, allowing users to connect various devices such as Blu-ray players, gaming consoles, and streaming devices. Additionally, the receiver supports HDMI video scaling, enabling the upscaling of standard definition signals to 1080p, which enhances the viewing experience on high-definition screens.

The 640R also includes multiple analog and digital inputs, ensuring compatibility with legacy devices alongside modern technology. A dedicated preamp output allows for the addition of external amplifiers, enhancing the system's scalability for audiophiles looking to create a bespoke setup.

Moreover, the Cambridge Audio 640R features an intuitive user interface and remote control, making it user-friendly even for those new to home audio systems. The on-screen display simplifies the selection of sources and adjustment of settings, while the advanced configuration options allow for precise customizations.

In summary, the Cambridge Audio 640R stands out as an exceptional AV receiver, combining audiophile-grade components with modern features. With its powerful performance, advanced surround sound capabilities, and extensive connectivity, it caters to both music lovers and home theater enthusiasts, making it a compelling choice for anyone looking to enhance their audio experience.