Importantsafetyinstructions

For your own safety please read the following important safety instructions carefully before attempting to connect this unit to the mains power supply. They will also enable you to get the best performance from and prolong the lifeoftheunit:

1.Readtheseinstructions.

2.Keeptheseinstructions.

3.Heedallwarnings.

4.Followallinstructions.

5.Donotusethisapparatusnearwater.

6.Cleanonlywithadrycloth.

7.Do not block any ventilation openings. Install in accordance with the manufacturer'sinstructions.

8.Do not install near any heat sources such as radiators, heat registers, stoves,orotherapparatus(includingamplifiers)thatproduceheat.

9.Donotdefeatthesafetypurposeofthepolarizedorgrounding-typeplug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The widebladeorthethirdprongareprovidedforyoursafety.Iftheprovided plugdoesnotfitintoyouroutlet,consultanelectricianforreplacement oftheobsoleteoutlet.

10.Protectthepowercordfrombeingwalkedonorpinched,particularlyat plugs, convenience receptacles and the point where they exit from the apparatus.

11.Onlyuseattachments/accessoriesspecifiedbythemanufacturer.

12.Use with only the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/ apparatuscombinationtoavoidinjuryfromtip-over.

13.Unplug this apparatus during lightning storms or when unused for long periodsoftime.

14.Refer all servicing to qualified service personnel. Servicing is required whentheapparatushasbeendamagedinanyway,suchasthepower- supply cord or plug having been damaged, liquid has been spilled or objectshavefallenintotheapparatus,theapparatushasbeenexposed torainormoisture,doesnotoperatenormally,orhasbeendropped.

WARNING

–Toreducetheriskoffireorelectricshock,donotexposethisunittorain ormoisture.

–Batteries (battery pack or batteries installed) shall not be exposed to excessiveheatsuchassunshine,fireorthelike.

The unit must be installed in a manner that makes disconnection of the mains plug from the mains socket outlet (or appliance connector from the rear of the unit) possible. Where the mains plug is used as the disconnect device, the disconnect device shall remain readily operable. Only use the mainscordsuppliedwiththisunit.

Pleaseensurethereisampleventilation(atleast10cmclearanceallround). Donotputanyobjectsontopofthisunit.Donotsituateitonarugorother soft surface and do not obstruct any air inlets or outlet grilles. Do not cover the ventilation grilles with items such as newspapers, tablecloths, curtains, etc.

This unit must not be used near water or exposed to dripping or splashing water or other liquids. No objects filled with liquid, such as vases, shall be placedontheunit.

The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un-insulated ‘dangerous voltage’ within the product’s enclosure that may be of sufficient magnitude toconstituteariskofelectricshocktopersons.

The exclamation point within an equilateral triangle is intended to alert the usertothepresenceofimportantoperatingandmaintenanceinstructionsin theserviceliteraturerelevanttothisappliance.

ThesymbolonthisproductindicatesthatitisofCLASSII(double insulated)construction.

WEEEsymbol

The crossed-out wheeled bin is the European Union symbol for indicating separate collection for electrical and electronic equipment. This product contains electrical and electronic equipment which should be reused, recycled or recovered and should not be disposed of with unsorted regular waste. Please

return the unit or contact the authorised dealer from whom you purchased thisproductformoreinformation.

CEmark

ThisproductcomplieswithEuropeanLowVoltage(2006/95/EC), Electromagnetic Compatibility (2004/108/EC) and Environmentally-friendly design of Energy-related Products (2009/125/EC) Directiveswhenusedandinstalledaccordingtothisinstructionmanual.For continued compliance only Cambridge Audio accessories should be used with this product and servicing must be referred to qualified service

personnel.

C-Tickmark

This product meets the Australian Communications Authority’s RadiocommunicationsandEMCrequirements.

Gost-RMark

ThisproductmeetsRussianelectronicsafetyapprovals.

FCCregulations

NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT.SUCHMODIFICATIONSCOULDVOIDTHEUSERAUTHORITYTO OPERATETHEEQUIPMENT.

This equipment has been tested and found to comply with the limitsforaClassBdigitaldevice,pursuanttoPart15oftheFCC Rules.Theselimitsaredesignedtoprovidereasonableprotection

against harmful interference in a residential installation. This equipment generates,usesandcanradiateradiofrequencyenergyand,ifnotinstalled and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interferencewillnotoccurinaparticularinstallation.

If this equipment does cause harmful interference to radio or television reception,whichcanbedeterminedbyturningtheequipmentoffandon,the user is encouraged to try to correct the interference by one or more of the followingmeasures:

-Re-orientorrelocatethereceivingantenna.

-Increasetheseparationbetweentheequipmentandreceiver.

-Connect the equipment into an outlet on a circuit different from that to whichthereceiverisconnected.

-Consultthedealeroranexperiencedradio/TVtechnicianforhelp.

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.