Forplayback the551Rexpectsyoutohaveanactualphysicalspeakersetup approximatelyconformingtooneofthelayoutsasshownbelow.

5.1Center

Left(30°)

Right(30°)

 

LFE

LeftSurroundRear(150°)

RightSurroundRear(150°)

7.1

orConfiguration5

Configuration1

For5.1setupsthesituationissimple,the551Rautomaticallyperformsany DTS Speaker Remapping required, mapping any of the 7 incoming possibilitiestothisconfiguration.

For 7.1 there are two alternative speaker setup you might have. These correspondstoconfiguration1andconfiguration5asabove.

Here you need to tell the 551R which configuration best matches your speakersetupbyselectingtheDTS-HDspeakermenuandselectingthe1or 5option.

Advanced Dolby/DTS Setup

 

Dolby Pro Logic IIx Panorama

:

Off

Dolby Pro Logic IIx Centre Width

:

0

Dolby Pro Logic IIx Dimension

:

3

 

 

 

DTS HD Spkr Remap

:

1

Dolby DRC

:

Auto

Return : [OSD]

The551Rcanthenperformanyspeakerre-mappingrequiredautomatically, andmapsanyoftheincoming7possibilitiestowhicheveroneofthetwo7.1 possibilitiesyouhave.

Note:Thisfeaturebyitsnatureonlyworksfor7.1DTSHDMasterAudioor DTSHDHighResolutionAudiobitstreams.

Also note that where the incoming speaker configuration and your physical speaker configuration actually match the 551R performs no mapping as you’dexpect.

azur

551R

Custominstallation(C.I.)use

 

An IR Emitter Input is provided that

allows

RS232C

modulated IR remote control commands to be

 

received electrically by the unit. An RS232 port is

 

alsofeaturedwhichallowsthe551Rtobecontrolled

 

byC.I.systems.

 

 

Inadditiontheunitfeatures'direct'IR/Controlcodesaswellastogglecodes for some of their features to simplify programming custom installation systems.SpecialdirectOn/OffandMutecommandscanbeaccessedonthe suppliedremotecontrolforteachingintoC.I.systemsasfollows:

1.PressandholdtheStandby/Onbuttonontheremotecontrol.Theremote firstgeneratesit'sstandby(toggle)command.Keepthebuttonhelddown, after 12 seconds an AV receiver “On” command will be generated. If the button is kept held down for a further 12 seconds, an AV receiver “Off” commandisgenerated.

Repeat this procedure with the Mute, Sub On/Off, Stereo Mono and Tuner AM/FM buttons to send On/Off commands. The Tuner AM/FM button also providesuniqueFMandAMcommandstoallowswitchingtoaspecificband. A full code table and RS232 protocol for this product is available on the CambridgeAudiowebsiteatwww.cambridge-audio.com.

Reset/Back-upmemory

The 551R has a function that preserves the preset memory and other settings. In the event of a power failure, or if the power cord of the unit is disconnected from the mains outlet, the back-up memory will preserve the presetmemoryforapproximatelyoneweek.Ifthepowersupplyisinterrupted for7daysorlonger,thememorysettingswillbeerased.

Ifit isdesiredtoresetallsettingstotheirfactorydefaults(orin theunlikely eventthattheunitlocksupduetoanelectricaldischargeetc),withtheunit on and out of Standby mode press and hold the DVD and Analogue Stereo Directbuttonsonthefrontpanelforthreeseconds.

“RESET” will appear briefly on the front panel display before returning to Standbymode.

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Cambridge Audio 551R user manual CustominstallationC.I.use, Reset/Back-upmemory

551R specifications

The Cambridge Audio 551R is a versatile and sophisticated A/V receiver that stands out in its class, designed for audiophiles and home theater enthusiasts alike. Combining cutting-edge technology with elegant design, the 551R delivers a remarkable audio-visual experience.

At the heart of the 551R is its robust amplification system, which offers 100 watts per channel across seven channels. This provides ample power to drive a wide variety of speakers, ensuring dynamic sound across all listening levels. The receiver features a high-quality digital signal processing unit that enhances audio performance while accommodating the latest high-definition formats.

One of the standout features of the Cambridge Audio 551R is its extensive connectivity options. With multiple HDMI inputs, the 551R allows for seamless integration with various devices, such as Blu-ray players, gaming consoles, and streaming devices. The HDMI inputs support 3D video and 4K pass-through, ensuring compatibility with modern home entertainment systems. Additionally, it includes multiple digital and analog inputs, allowing users to connect traditional audio sources.

The 551R employs a sophisticated user interface, complete with an intuitive on-screen display. This makes navigating through settings and configurations effortless, even for those who may not be tech-savvy. The receiver also comes with a remote control that offers convenient access to essential functions.

Cambridge Audio places high importance on sound quality, and the 551R is no exception. Its premium components, including a high-grade DAC (Digital to Analog Converter) and carefully selected capacitors, contribute to achieving an exceptionally clean and natural sound signature. The receiver also offers various sound modes and equalization settings, which allow users to tailor the audio output to their room’s acoustics and personal preferences.

Another key characteristic is the inclusion of advanced video processing technologies. The 551R can upscale standard video sources to near-HD quality, enhancing the overall viewing experience. This is especially beneficial for older content or lower-resolution media, allowing users to make the most of their display’s capabilities.

In summary, the Cambridge Audio 551R A/V receiver is a powerful and versatile product that brings together exceptional sound quality, extensive connectivity options, and user-friendly functionality. Whether for music appreciation or cinematic experiences, the 551R is designed to satisfy the most discerning audio and video aficionados, making it an excellent choice for any home entertainment setup.