azur 651R/751R Your music + our passion ENGLISH AV receiver User’s manual 2
Contents Introduction .........................................................................................................3 Trigger Outputs............................................................................................31 Important safety instructions .............................................................................4 Bi-amping .....................................................................................................32 Limited warranty .............................
azur 651R/751R Thank you for purchasing your 651R or 751R AV Receiver. We are confident that you will enjoy many years of listening pleasure from it. Like all Cambridge Audio products the 651R/751R adheres to our three core principles – stunning performance, ease of use and incredible value. As such, the seven audiophile grade fully discrete class AB amplifiers are kept as separate as possible from the processing and input stages and feature a large power supply with a low flux toroidal transformer.
Important safety instructions 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 life of the unit: 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any ventilation openings.
azur 651R/751R Ventilation IMPORTANT – The unit will become hot when in use. Do not stack multiple units on top of each other. Do not place in an enclosed area such as a bookcase or in a cabinet without sufficient ventilation. Ensure that small objects do not fall through any ventilation grille. If this happens, switch off immediately, disconnect from the mains supply and contact your dealer for advice. Positioning Choose the installation location carefully.
Front panel controls 6 7 8 9 10 11 12 25 13 14 15 16 23 24 26 1 2 3 4 5 22 17 18 19 20 21 6 7 8 10 11 12 25 13 14 15 16 23 24 26 1 2 3 4 5 22 17 18 1 Standby/On Switches the unit between Standby mode (indicated by a dim power LED) and On (indicated by a bright power LED). Standby is an eco-friendly <0.5W low power mode. The unit may be left in Standby mode when not in use. 2 Phones Allows for the connection of stereo headphones with a 6.35mm/¼" Jack plug.
651R/751R ENGLISH azur 17 Audio input type Press this button to select between analogue, digital (optical/coaxial) or HDMI input types as the source of the audio for the currently selected source input. The choices available depend on the inputs that have been assigned to that source, see later section. 18 Stereo modes Press to listen to a source in either digitally processed stereo or stereo and sub modes.
Rear panel connections 5 6 9 10 11 12 13 14 1 15 16 17 18 19 7 8 2 4 20 20 3 5 6 9 10 11 12 13 14 1 15 16 17 18 19 7 8 2 4 21 20 1. FM/AM antennas 5. A/B HDMI outputs All tuner antenna connections are made here. Refer to the ‘Antenna Connections’ section of this manual for more information. Via the On Screen Display A, B or A and B outputs can be selected (for connection to two TVs or a TV and a projector for instance). 2.
azur 651R/751R 9. Expansion port For connection to optional Expansion Source Modules as they become available. Contact your Cambridge Audio dealer for details. 10. Front IR switch Turns the units built-in IR receiver reception on/off if it is desired to use an IR repeater system plugged into the rear Main Zone IR Emitter Input instead. 11. Zone 2 Independant stereo audio and analogue video outputs to a second Zone (i.e. a room or area separate from the main area.
Main remote control The 651R/751R is supplied with an Azur Navigator remote control. Insert the supplied AAA batteries to use. For full details of the various adjustment functions available from the remote, refer to the later sections of this manual. This remote can be used in the Main Zone or Zone 2 (via an IR repeater system) and will automatically affect only the Zone in which it is used. Bass/Treble Press for bass/treble adjustment, using the Volume up/down buttons.
azur 651R/751R 1 2 4 AUTO FM STEREO HDMI USB ANALOG DIGITAL MUTING RH LH TUNED HR 96/24 MSTR ES Exp SR SW SL Audyssey Neo:6 X Dynamic EQ Vol SBR SBL D TrueHD Bi AMP RoomEQ DIRECT EXPL x z C ENGLISH Front panel display Z2 3 1 Output channel indicators Shows the currently active channels depending on decoding mode and source material. Icons lit indicate channels being output by the 651R/751R. Z2 Indicates Zone 2 is active (on).
Analogue audio connections Note: Do not plug in the mains power lead or turn the unit on until all connections have been made. Connect to source equipment using stereo phono cables (stereo 2RCA2RCA). Tape/MD/CDR recorder/players require two sets of stereo phono/RCA cables, one for recording, one for listening.
azur 651R/751R ENGLISH HDMI input connections HDMI (High-Definition Multi-Media Interface) is an all digital connection that can carry both audio and video in one cable. Direct digital transfer of audio and video and support for various types of High Definition video content and high resolution audio make this the best connection type to use. The HDMI inputs can be assigned to the BD/DVD, Video 1, Video 2, Recorder 1, Aux, CD, Recorder 2, Expansion or 7.
Video output connection (HDMI A & B) Connection to the TV is by HDMI. The 651R/751R converts incoming analogue video to HDMI and scales it for best picture quality. See later section. Note: Both outputs always show the same video. See the HDMI/Component Assign menu below on how to select the active HDMI output in the On Screen Display menus. Two outputs are fitted that can be used individually or at the same time (for a TV and projector perhaps).
651R/751R 7.1 preamp out Front input connections If it is desired to connect external power amplifiers, use Phono/RCA leads connected to the 7.1 Preamp Outputs on the rear panel. The front panel Video 3/MP3 input is for temporary connections to video games consoles etc. Remove the cap to access the Video 3 inputs and connect to a video game console or video camera’s outputs using stereo phono cables (RCA-RCA) and a Composite video cable. Alternatively, use the 3.
651R/751R setup Background information The full setup of the 651R/751R is a reasonably simple 3 stage process. The Speaker Setup stage can either be performed manually or via the Audyssey Auto Setup procedure. For stereo and multi-channel sound.
Note if you select a 5.1 speaker setup an option appears for SBL/R Assign. You may now choose to use the unused SBL and SBR amplifier channel to Biamp the Front Left and Right channels (Set SBL/R Assign to Biamp) or drive a pair of speakers in Zone 2 (Set SBL/R Assign to Zone 2) or simply leave them unconnected (Set SBL/R Assign to None). For information in Biamping and Zone 2 see later sections. Make this selection first then either configure your speakers fully manually or run the Audyssey Autosetup.
Manually setting level calibration The 651R/751R allows level calibration to match the acoustic level between different types/sizes or even manufacturers of speaker that may be being used for each channel. This is achieved by adjusting the relative level of each speaker. This can be done manually through the ‘Level Calibration’ menu in the OSD or automatically, see the following Audyssey auto setup section of this manual.
Audyssey 2EQ Room EQ This is a more sophisticated version with a longer second stage that measures the frequency response of all of your speakers three times at three different points in the room and then calibrates and equalizes them to optimise the sound for your actual listening environment (Room EQ). To perform Audyssey Autosetup with no Room EQ simply select Audyssey Autosetup from the menu. To perform Autosetup and Room EQ select Audyssey Autosetup & 2EQ.
When the auto setup of the 651R/751R is completed successfully, the 651R/751R displays a ‘Measurement Complete’ screen and then shows the Advanced Audyssey Setup screen as per following section. If you have just perfomed Audyssey Autosetup & 2EQ you will see 2EQ is enabled plus you can now enable Audyssey Dynamic EQ and/or Dynamic Volume as well (if desired).
651R/751R Assigning video inputs Source setup The 651R has 4 HDMI (High Definition Multi-Media Interface) inputs and two HDMI outputs. The 751R has 6 HDMI inputs (one of which is on the front) and two outputs. HDMI is a fully digital audio/video system for picture and audio in digital format for best possible picture quality.
Surround sound modes For analogue video sources it is almost always desirable to process these for best picture quality before passing them to the TV. To change the Process/Bypass status of any source (including HDMI) simple select it in the menu and use the left and right buttons on the remote. The 651R/751R supports several music and home-cinema listening modes. The output the 651R/751R can provide, depends both on the source signal present, the speaker setup selected and the decode mode selected.
Known also as DD (3/3) or DD 6.1, an enhanced form of Dolby Digital. On top of the discretely encoded 5.1 channels DD EX provides an extra 6th channel (Surround Back, giving 6.1) matrix encoded into the rear surrounds for greater image depth and more solid sound localisation behind the listener. DD EX requires a DD EX encoded disc. DD EX is backwards compatible with DD 5.1 decoding.
USB Audio (751R only) Use with Macs No extra drivers are required. With the 751R switched to USB Audio 1.0 the 751R will work with the native Mac OS-X 10.5 (Leopard) or above Audio 1.0 driver and accept audio up to 24-bit/96kHz. With the 751R switched to USB Audio 2.0 the 751R works with the native Mac OS-X 10.5 (Leopard) or above Audio 2.0 driver and can accept audio up to 24-bit/192kHz. Use with Linux For most distributions of Linux with the 751R switched to USB Audio 1.
azur 651R/751R To activate the 651R/751R, switch the Power switch on the rear panel to On then press the Standby/On button on the front panel. Selecting the source 1. Select the desired source by pushing the corresponding source button on the front panel or remote control. Dolby Pro Logic and Neo:6 are both available in various guises to decode appropriately encoded soundtracks. Additionally DSP modes are available to process sources with no encoding at all.
Operating instructions continued Decode modes - 5.1 speaker setup Incoming audio format Native channel resolution Modes available Output channels PCM 2 PCM PCM + Dolby Pro Logic II Movie PCM + Dolby Pro Logic II Music PCM + Dolby Pro Logic II Game PCM + Neo:6 Cinema PCM + Neo:6 Music PCM + DSP Movie PCM + DSP Music PCM + Multi channel stereo 2" >5.1 >5.1 >5.1 >5.1 >5.1 >5.1 ! >5.1 ! >5.
651R/751R ENGLISH azur Decode modes - 5.1 + Height speaker setup Incoming audio format Native channel resolution Modes available Output channels PCM 2 PCM PCM + Dolby Pro Logic IIz Height PCM + Multi Channel Stereo 2" >5.1 + H >5.1 + H MCS Dolby Digital (2/0) 2 Dolby Digital (2/0) Dolby Digital (2/0) + Dolby Pro Logic IIz Height Dolby Digital (2/0) + Multi Channel Stereo 2" >5.1 + H >5.1 + H MCS Dolby Digital 5.1 Dolby Digital (3/2).1 Dolby Digital (3/2).1 + Dolby Pro Logic IIz Height 5.
Decode modes - 7.1 speaker setup Incoming audio format Native channel resolution Modes available Output channels PCM 2 When the source has been appropriately encoded Dolby Pro Logic II gives 5 channel Neo:6 6 channel and Dolby Pro Logic IIx 7 channel matrix encoding PCM PCM + Dolby Pro Logic IIx Movie PCM + Dolby Pro Logic IIx Music PCM + Dolby Pro Logic IIx Game PCM + Neo:6 Cinema PCM + Neo:6 Music PCM + DSP Movie PCM + DSP Music Multi channel stereo 2" >7.1 >7.1 >7.1 >7.1 >7.1 >7.1 ! >7.1 ! >7.
651R/751R ENGLISH azur Decode modes - 7.1 speaker setup Incoming audio format Native channel resolution Modes available Output channels Dolby Digital Plus 5.1 $ Dolby Digital Plus (3/2).1 Upmix Dolby Digital Plus (3/2).1 Dolby Digital Plus (3/2).1 + Dolby Pro Logic IIx Movie Dolby Digital Plus (3/2).1 + Dolby Pro Logic IIx Music >7.1 # 5.1 >7.1 >7.1 Dolby Digital Plus 7.1 $ Dolby Digital Plus (3/4).1 7.1 Dolby True HD 5.1 $ Dolby True HD (3/2).1 Upmix Dolby True HD (3/2).
Using the tuner Audio Return Channel The 651R/751R supports an Audio Return Channel (ARC) function from TVs that also support this function (which must feature an HDMI1.4 input and have actually implemented the ARC feature, see your TVs manual). ARC allows a TV to send audio back down its incoming HDMI lead to the 651R/751Rs HDMI A output socket. 1. Press the Tuner FM/AM button on the front panel or remote control to select Tuner mode. 2. Press the Tuner FM/AM button again to select FM or AM if desired. 3.
651R/751R You can use the Volume knob or the / buttons to make changes to the picture or press the Pic.Adj. button again to move to the next item. Note: The 651R/751R also shows the active HDMI outputs on the front panel display of the unit itself whenever the OSD is on. Adjustments are available for Brightness, Contrast, Saturation, Sharpness and Y/C Delay.
Bi-amping Bass Augment can be On or Off separately for DD/DTS or Dolby Pro Logic II/IIx/Neo:6 operation. If you are running a 5.1 (or less) speaker setup, the 651R/751R allows for bi-amping of the front left and right channels. It will be seen in the Speaker Configuration menu that with the Decode mode set as 5.1 a Bi-amp On/Off item appears. There is no Bass Augment function for Stereo + Sub mode because in this mode if the Front speakers are set to ‘Large’ they will actually always be unfiltered.
However in the case of Recorder 2 the output can be different to that being listened to via the 651R/751R main outputs. Thus it is possible to listen to one source and record another. Selection of the Recorder 2 outputs source is done via the Record 2/Zone 2 Output select menu in the OSD as follows. 651R/751R All three adjustments are a matter of personal preference, experiment for the settings that you prefer when you are using Dolby Pro Logic II or Dolby Pro Logic IIx decoding.
Using the 651R/751R with an IR repeater system Using Zone 2 with the built in SBL/SBR amplifier outputs If desired the 651R/751R can be mounted in a suitably well ventilated cabinet and an IR repeater system used to control the unit remotely. In the On-Screen Display select the Speaker Setup menu.
With this configuration you can now control Zone 2 from the main room by using the main or Zone 2 handsets as supplied (see later section). If it is desired to remotely control Zone 2 and the sources in it from Zone 2 itself an additional (not supplied) IR repeater system should be used, choose one with an Emitter (modulated) type output suitable to connect to the Zone 2 IR emitter In (contact your dealer for details).
Zone 2 continued To select Tuner in Zone 2, press Zone 2 followed by the Tuner button. Do this again to switch from AM to FM or vice versa. To select other sources in Zone 2 press Zone 2 followed by the desired source button. To select the same source as the main room’s, press Follow Main. To change the volume is Zone 2 press Zone 2 followed by the volume up or down buttons (or volume knob). To mute Zone 2 press Zone 2 followed by the Mute button.
Configuration 4 - 7.1 channel: L, C, R, LFE, Ls, Rs, Lh, Rh 651R/751R For playback the 651R/751R expects you to have an actual physical speaker setup approximately conforming to one of the layouts as shown below. Center Conventional 5.1 Left Height Center Right Height Left (30°) Right (30°) LFE Left (30°) Right (30°) LFE Left Surround (110°) Right Surround (110°) Left Surround Rear (150°) Right Surround Rear (150°) Configuration 5 - 7.1 channel: L, C, R, LFE, Ls, Rs, Lsr, Rsr 5.
Auto Power Down Troubleshooting The 651R/751R feature automatic power down and will by default shut down if no audio playback has been detected for 30 minutes. A low hum or buzz sound can be heard This feature can be enabled or disabled in the Advanced Audio Setup menu, select the Auto Power Down item and press the < or > buttons on the remote to change. Analogue inputs not connected securely. Power cords or lighting placed near this product.
azur 651R/751R General Audio Power Output ENGLISH Technical specifications 651R Architecture All Channels : 175 watts rms per channel, 6 ohms (two channels driven) Cirrus Logic CS43122 24 Bit 192kHz capable DAC for Front Left & Right Cirrus Logic CS52526 24 Bit 192kHz capable CODEC for surround channels + 24 Bit 2 channel A/D conversion All Channels : 140 watts rms per channel, 8 ohms (two channels driven) All Channels : 100 watts rms per channel, 8 ohms (all 7 channels driven) Two TI Aureus DA788
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