Technical specifications

Audio

Power Output

2 x 120 watts rms per channel,

 

8 ohms (two channels driven)

 

7 x 100 watts rms per channel,

 

8 ohms (all 7 channels driven)

THD

<0.006% @1kHz

Crosstalk

<-60dB @ 1kHz

Frequency response

10Hz - 20kHz -1dB

S/N Ratio

>90dB 'A' weighted

Audio Input Impedance / Sensitivity

 

47kOhms / 175mV or greater

Digital Input Impedance

75ohms (Coaxial/SPDIF)

 

Tone Control

 

- Bass

+/-10dB @ 100Hz

- Treble

+/-10dB @ 10kHz

Tuner

 

- FM mode

87.5-108MHz, 75 ohm coaxial aerial

- AM mode

522-1629kHz, 300 ohm loop aerial

Video

Video Levels /Impedance

 

- Composite (CVBS)

1Vp-p / 75ohm

- S-Video (S-VHS)

Y 1Vp-p / 75ohm

 

C 0.286 Vp-p / 75ohm

- Component

Y 1Vp-p / 75ohm

 

Cb/Cr 0.75Vp-p / 75ohm

 

Pb/Pr 0.75Vp-p / 75ohm

HDMI

Transfer of all resolutions up to and including 1080p @ 50/60Hz (1920 x 1080) supported, with HDCP handshaking.

General

Architecture

Crystal CS43122 24 Bit 192kHz

 

capable DAC for Front Left & Right

 

Crystal CS52526 24 Bit 192kHz

 

capable CODEC for surround

 

channels + 24 Bit 2 channel A/D

 

conversion

 

Crystal CS43122 32 bit DSP

Audio Inputs

8

Line Level Analog

 

Tuner (FM/AM)

 

7.1 Analog Input

 

5

Digital Co-axial, 6 Digital Optical

Video Inputs

5

Composite, 5 S-Video,

 

3

Component Video, 3 HDMI

Main Audio Outputs

7

Amplified Speaker Outputs

 

7.1 Preamp outputs

Main Video Outputs

1

Composite, 1 S-Video,

 

1

Component Video, 1 HDMI

Recording Audio Outputs

2

Line Level Analog

 

2

Digital Co-Axial, 2 Digital Optical

Recording Video Outputs

1 Composite, 1 S-Video

Other connections

1 1/4" / 6.35mm Headphone Output

 

(32 To 600 ohms recommended)

 

1

Control Bus Input / Ouput

 

1

IR Emitter In

 

1 RS232C

 

1

IEC type mains inlet

Incognito Ready™ / A-BUS Ready™

 

2

A-BUS keypad outputs (2nd/3rd Zone)

 

3

IR Emitter outputs

 

2 Composite video outputs (2nd/3rd Zone)

 

1

External PSU input 24VDC

Standby power consumption <10w

Quiescent power consumption <70w

Max power consumption

1400w

Dimensions - H x W x D

150 x 425 x 420mm

 

(inc all terminals & controls)

Weight

15kg (33lbs)

Decoding modes supported

PCM

Stereo Linear PCM with or without digitally created Sub, 16-24 bit data, 44.1, 48 or 96kHz

PLII Movie

5.1PLII matrix decode optimised for movie material

PLII Music

5.1PLII matrix decode optimised for music material

PLII Game

5.1PLII matrix decode optimised for game material

PLIIx Movie

6.1/7.1 PLIIx matrix decode optimised for movie material

PLIIx Music

6.1/7.1 PLIIx matrix decode optimised for music material

PLIIx Game

6.1/7.1 PLIIx matrix decode optimised for game material

Dolby Digital Stereo (2/0) + PLII Movie

5 .1 PLII matrix decode of Dolby Stereo material

Dolby Digital Stereo (2/0) + PLII Music

5.1PLII matrix decode of Dolby Stereo material

Dolby Digital Stereo (2/0) + PLII Game

5 .1 PLII matrix decode of Dolby Stereo material

Dolby Digital Stereo (2/0) + PLIIx Movie

6 .1/7.1 PLIIx matrix decode of Dolby Stereo material

Dolby Digital Stereo (2/0) + PLIIx Music

6 .1/7.1 PLIIx matrix decode of Dolby Stereo material

Dolby Digital Stereo (2/0) + PLIIx Game

6 .1/7.1 PLIIx matrix decode of Dolby Stereo material

Dolby Digital

(Up to) 5.1 digital surround sound

Dolby Digital + PLIIx Movie

PLIIx Movie post process of DD 5.1 giving 6.1 or 7.1 (7.1 has mono back surrounds)

Dolby Digital + PLIIx Music

PLIIx Music post process of DD 5.1 giving 6.1 or 7.1 (7.1 has mono back surrounds)

Dolby Digital EX

6.1or 7.1 (7.1 has mono back surrounds) decode of 6.1 Dolby Digital EX material

DTS Neo:6 Cinema

5.1/6.1/7.1 Neo:6 matrix decode (6.1 source material) 5.1 decode has phantom rear centre, 7.1 decode has mono back surrounds)

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Cambridge Audio 640Razur user manual Technical specifications, Audio, General, Decoding modes supported

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.