Frontpaneldisplay, Loudspeakerconnections

Frontpaneldisplay

1 2 3

1 Modeicons

Directindicator

Lights when the 551R is in a Direct mode - Analogue Stereo Direct or 7.1 Direct.

HDMI

IndicatesthecurrentsourceaudioinputtypeisHDMI.

Multi

Indicatesthe551Risreceivingmulti-channelPCMoverHDMI.

Digital/Analogueindicators

Indicates whether the current source audio input type is Digital (S/P DIF/Toslink)orAnalogue.

2 Decoding mode indicators (PCM, Dolby Digital, DTS etc)

Showsthecurrentdecodingmode,DolbyDigital,DTSetc.Inconjunctionwith theOutputChannelindicatorsthesegivefulldetailsofthecurrentprocessing mode.

3 Videoinputicons

Indicates the current video input type as Video (composite), S-Video, YUV (Component)orHDMI.

4 Maininformationdisplay

Shows the current source selected, also the surround mode and station name/frequencywhenintunermodeetc.

5 Outputchannelindicators

Shows the currently active channels depending on decoding mode and source material. Icons lit indicate active channels in the source material. Icons with a box around them indicate actual channels being output by the 551R.

Displayexamples

Indicates a 5.1 Dolby Digital source being played back as 5.0 (Sub off). The lit LFE indicates a low frequency effects channel is present in the source material.Whenthisiconisn’tboxeditindicatestheLFEchannelisnotbeing senttoasubwooferbutwillbemixedintothefrontleftandrightinstead.

Indicatesa7.1playbackofDTSESmaterial.

Indicates a 2.1 output created in the digital domain from analogue input material.

azur 551R

Loudspeakerconnections

To avoid damaging the speakers with a sudden high-level signal, be sure to switchthepoweroffbeforeconnectingthespeakers.Checktheimpedance of your speakers. Speakers with an impedance of between 4 and 8 ohms (each)arerecommended.

The coloured speaker terminals are positive (+) and the black speaker terminals are negative (-). Make sure correct polarity is maintained at each speaker connector or the sound can become weak and “phasey” with little bass.

Prepare the speaker cords for connection by stripping off approximately 10mm (3/8”) or less (no more than 10mm, as this could cause a short- circuit)oftheouterinsulation.Twistthewiretightlytogethersothereareno loose ends. Unscrew the speaker terminal knob, insert the speaker cable, tightentheknobandsecurethecable.

Note: All connections are made via loudspeaker cable, except if using an activesubwooferwhichwouldbeconnectedviaastandardRCAphonocable.

Banana Plugs (4mm standard) connected to the speaker cable are recommendedfordirectinsertionintothespeakerterminals.

Please refer to the ‘Speaker Configuration’ section of this manual for more informationon5.1and7.1speakersetups.

Poweredsubwoofer

Centrespeaker

Phono/RCAcable

		Front

Surround			Surroundback
speakers	speakers		speakers

ENGLISH

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.