Sherwood R-872 manual Specifications, Amplifier Section

Page 76

ENGLISH

Specifications

AMPLIFIER SECTION

 

 

 

 

 

 

 

 

 

2×100 W

 

• Power output, stereo mode, 8 Ω, THD 1.0 %, 40 Hz~20 kHz

 

• Total harmonic distortion, 8 Ω, 95 W, 1 kHz

0.05%

 

 

• Intermodulation distortion

 

 

 

 

 

0.1%

 

 

60 Hz : 7 kHz= 4 : 1 SMPTE, 8 Ω, 95 W

 

 

• Input sensitivity/impedance

 

230 mV/47kΩ

 

 

 

 

 

Line (CD, TAPE, VIDEO)

 

 

 

 

 

• Signal to noise ratio, IHF "A" weighted

 

 

 

 

 

 

 

Line (CD, TAPE, VIDEO)

95 dB

 

 

 

 

 

 

• Frequency response

 

 

 

 

 

 

 

 

+0, -3 dB

 

Line (CD, TAPE, VIDEO), 20 Hz ~ 55 kHz

 

• Output level

 

 

 

 

 

 

 

200 mV

 

 

 

 

 

TAPE, ROOM 2 OUT, 2.2 kΩ

 

 

 

 

1.0 V

PREOUT (Front, Center, Surround, Surround back, Subwoofer), 1 kΩ

• Bass/Treble control, 100 Hz/10 kHz

±10 dB

 

 

 

 

 

• Surround mode, only channel driven

 

 

 

110 W / 110W

 

Front power output, 8 Ω, 1 kHz, THD 1.0 %

 

Center power output, 8 Ω, 1 kHz, THD 1.0 %

 

110 W

 

Surround power output, 8 Ω, 1 kHz, THD 1.0 %

110 W / 110W

110 W / 110W

Surround back (/MULTI) / ROOM 2 power output, 8 Ω, 1 kHz, THD 1.0 %

DIGITAL AUDIO SECTION

 

 

 

 

 

 

 

 

 

 

• Sampling frequency

 

32, 44.1, 48, 96, 192 kHz

 

 

 

• Digital input level

 

 

0.5 Vp-p

 

 

 

 

 

 

 

 

 

Coaxial, 75 Ω

 

 

 

 

 

 

 

 

 

 

Optical, 660 nm

 

-15 ~ -21 dBm

 

 

 

 

 

 

VIDEO SECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

• Video format

NTSC

 

 

 

 

 

 

 

 

 

 

• Input sensitivity(=Output level), 75 Ω

1 Vp-p

 

 

 

 

 

 

Video (Composite(normal))

 

 

 

 

 

 

 

S-Video (luminance signal)

 

1 Vp-p

 

 

 

 

 

 

 

(chrominance signal)

 

0.286 Vp-p

 

 

 

Component video (R-Y signal)

 

0.53 Vp-p

 

 

 

 

 

 

 

 

 

(B-Y signal)

0.53 Vp-p

 

 

 

 

 

 

 

 

 

(Y signal)

 

1.0 Vp-p

 

 

 

 

• HDMI connector

 

19 pin

 

 

 

 

 

 

 

 

 

 

FM TUNER SECTION

 

87.5~108 MHz

 

 

 

 

 

• Tuning frequency range

 

 

 

 

 

• Usable sensitivity, THD 3%, S/N 30 dB

12.8 dBf

 

 

• 50 dB quieting sensitivity, mono/stereo

20.2 / 45.3 dBf

 

• Signal to noise ratio, 65 dBf, mono/stereo

70 / 65 dB

0.5 / 0.8 %

 

• Total harmonic distortion, 65 dBf,1 kHz, mono/stereo

 

• Frequency response, 30 Hz~15 kHz

±3 dB

 

 

 

 

• Stereo separation, 1 kHz

32 dB

 

 

 

 

 

 

 

• Capture ratio

 

4.0 dB

 

 

 

 

 

 

 

 

 

 

• IF rejection ratio

 

60 dB

 

 

 

 

 

 

 

 

 

 

AM TUNER SECTION

 

520~1710 kHz

 

 

 

 

 

• Tuning frequency range

 

 

 

 

 

• Usable sensitivity

 

 

500 µV/m

 

 

 

 

 

 

 

 

• Signal to noise ratio

 

40 dB

 

 

 

 

 

 

 

 

 

• Selectivity

 

25 dB

 

 

 

 

 

 

 

 

 

 

 

RF REMOTE SECTION

2.433 GHz ± 100 kHz

 

 

 

 

• Operating frequency

 

 

 

 

• RF range

15 ~ 30 meters (50 ~ 100 feet), depending on the environment

• Sensitivity

 

Min. -90 dBm

 

 

 

 

 

 

 

 

 

GENERAL

 

 

 

120 V ~ 60 Hz

 

 

 

 

 

 

 

 

• Power supply

 

 

 

 

 

 

 

 

• Power consumption

 

5 A

 

 

 

 

 

 

 

 

 

• Switched AC outlets

 

TOTAL 120 W (1 A) max.

440×171×421 mm(17-3/8×6-3/4×16-1/2 inches)

• Dimensions (W×H×D, including protruding parts)

 

• Weight (Net)

15.1 kg (33.1 Ibs)

 

 

 

 

 

 

 

Note: Design and specifications are subject to change without notice for improvements.

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Contents Page Safety Instructions Introduction Read this Before Operating Your UnitContents Connecting Antennas System ConnectionsConnecting Video Components Hdmi High Definition Multimedia Interface connection *1Flow of the video signals Component video input default settings *2Video conversion Flow of the audio signals Audio conversionConnecting Audio Components Connecting External INSConnecting PRE Outs Connecting Digital INS and OUTDigital input default settings Surround back speakers Connecting SpeakersFront Bi-Amp Connections Speaker placement Front left and right speakers and center speakerSurround left and right speakers Surround back left and right speakersConnecting Room 2 Outs Connecting XM only for North AmericaConnecting RF Remote Antenna Connecting MULTI-ROOM System KITConnecting DC Trigger OUT Connecting PC for UpgradesSwitched AC Outlets AC InputFront Panel Controls Fluorescent DisplaySetup MIC Jack AUX in JackUniversal Remote Controls About the transmission signalFunction Table of the Numbered Buttons Remote Control Operation Range Using Functions of Remote Control Entering a setup codeSearching a setup code English Erasing the programmed command from one button Erasing all the commands programmed under a device modeTo erase a macro program Programming a macro functionTo change a macro program Operating a macro function Programming a punch-through functionOperating a punch-through function Erasing the programmed punch-through functionThen VOL is displayed on the LCD screen for several seconds Changing the transmission signal When RF is set toRemote Control Operation Range Room 2 Remote ControlsLoading Battery When selecting the External in as desired OperationsListening to a Program Source Before operationWhen CD, AUX, Video 1~ 4 is selected as an input source Muting the soundListening with headphones Achieving higher purity of sound qualitySurround modes Dolby Headphone Dolby Virtual SpeakerNeural Surround Enjoying Surround Sound Dolby Digital +Listening in Dolby Headphone mode Adjusting each channel level with test toneTo cancel the surround mode for stereo operation 2CH downmix modeAdjusting the current channel level Channel levelMemorizing the adjusted channel levels Recalling the memorized channel levelsAuto tuning Manual tuningAuto presetting Listening to Radio BroadcastsManual presetting Tuning to preset stationsXM Satellite Radio only for North America Signing up for XM Satellite RadioDirect search Channel searchCategory search Presetting channels Preset search Signal strength display modeError message and status Displaying XM informationDubbing from video components onto RecordingVideo Digital Audio Recording with MD Recorder Operating the sleep timer Adjusting the brightness of the fluorescent displayOther Functions Displaying the audio informationWhen selecting the tuner as a Room 2 source When using the buttons on the remote control unitRoom 2 Source Playback When using the buttons on the front panel When selecting the Room 2 modeWhen selecting the Room 2 input When selecting the Room 2 volumeOSD Menu Settings MultiConfirm your selection When selecting the items other than OSD Position Adjust Setting the System SetupWhen selecting the AMP Assign When selecting the Hdmi Audio OUT When selecting the Subwoofer ModeWhen selecting the Tone Control When selecting the Cinema EQ When selecting the Momentary OSDWhen selecting the OSD Position Adjust When selecting the items other than Name Setting the Input SetupWhen selecting the menu of page 2 or When selecting the Hdmi Assign When selecting the Video AssignWhen selecting the Video Mode When selecting the Audio AssignWhen selecting the Audio Mode When selecting the Video ScalingWhen selecting the Auto Surround When selecting the AV SyncWhen selecting the DC Trigger When selecting the HD AudioWhen selecting the Name To resume its factory input source nameWhen selecting the Auto Setup Setting the Speaker / Room EQ SetupPreparations When the auto setup has been completed When selecting the Speaker Configuration When selecting the Speaker Distance About the speaker distanceWhen selecting the Speaker Crossover When selecting the Room EQ Setup Setting the CH Level Setup Memorizing the adjusted channel levels Setting the Sound Parameter When selecting the Night ModeWhen selecting the Dolby Plii Music When selecting the Panorama modeWhen selecting the Center Width control When selecting the Dimension controlWhen selecting the Dolby Headphone When selecting the Dolby Virtual Speaker When selecting the Dolby Virtual Speaker Wide modeSetting the Multi Room Setup When selecting the Room When selecting the InputWhen selecting the Volume When adjusting the tone Bass and TrebleTroubleshooting Guide Problem Possible Cause RemedySpecifications Amplifier SectionSetup Code Table AOCVCR VCR TV/VCR DVD SAT AUX-MD DKK

R-872 specifications

The Sherwood R-872 is a high-performance stereo receiver that offers an impressive combination of features, sound quality, and versatility, making it a valuable addition to any home audio system. Designed with an emphasis on audio fidelity and user convenience, the R-872 stands out as a reliable choice for both audiophiles and casual listeners alike.

One of the main features of the Sherwood R-872 is its robust power output, capable of delivering 100 watts per channel into 8 ohms. This level of power ensures that it can drive a wide range of speakers, from bookshelf models to larger floor-standing units, providing a rich and immersive listening experience. The receiver's built-in amplifier also supports low total harmonic distortion (THD) levels, which guarantees clear and accurate sound reproduction, even at high volumes.

The R-872 is equipped with a variety of connectivity options, making it easy to integrate into modern home entertainment setups. It includes multiple analog inputs for connecting various audio sources, such as CD players, turntables, and streaming devices. Additionally, it features built-in Bluetooth, allowing users to wirelessly stream music from smartphones, tablets, and computers, enhancing its versatility as a central component of any audio system.

Another noteworthy characteristic of the Sherwood R-872 is its sophisticated digital signal processing (DSP) capabilities. With multiple sound presets and adjustable equalization settings, users can tailor the audio output to their preferences, whether they are enjoying music, movies, or gaming. The receiver also offers a convenient headphone output, catering to those who prefer a private listening experience.

In terms of design, the R-872 boasts a sleek and modern aesthetic with an intuitive interface. The front panel features a clear display that provides essential information about the current audio source, volume level, and other settings. The included remote control allows for easy operation from a distance, adding to the overall user-friendly experience.

In summary, the Sherwood R-872 is a versatile and powerful stereo receiver that excels in delivering high-quality audio while accommodating a range of input sources and personal preferences. With its solid performance, modern features, and elegant design, the R-872 is an excellent choice for anyone looking to enhance their home audio setup. Whether you're listening to your favorite albums or enjoying a thrilling movie soundtrack, the R-872 ensures an engaging and enjoyable audio experience.