ENGLISH

Specifications

Amplifier Section

Power output, stereo mode, 6 Ω, THD 0.3 %, 40 Hz~20 kHz 2 100 W Total harmonic distortion, 6 Ω, 50 W, 1 kHz 0.09% Intermodulation distortion

60 Hz : 7 kHz= 4 : 1 SMPTE, 6 Ω, 100 W 0.1%

Input sensitivity, 47 kΩ

 

 

 

 

 

 

Line (AUX) 200 mV

 

 

 

 

Signal to noise ratio, IHF “A” weighted

 

 

 

 

Line (TAPE) 95 dB

 

 

 

 

Frequency response

 

 

 

 

 

 

Line (AUX, TAPE), 20 Hz~44 kHz

3 dB

Output level

 

 

 

 

 

 

TAPE OUT, 2.2 kΩ 180 mV

 

 

Bass/Treble control, 100 Hz/10 kHz

 

 

10 dB

 

Surround mode, only channel driven

 

 

 

 

Front power output, 6 Ω, 1 kHz, THD 0.3 % 100 W+100 W

Center power output, 6 Ω, 1 kHz, THD 0.3 % 100 W

Surround power output, 6 Ω, 1 kHz, THD 0.3 % 100 W+100 W

Surround back power output, 6 Ω, 1 kHz, THD 0.3 % 100 W

Digital Audio Section

 

 

 

 

 

 

Sampling frequency 32, 44.1, 48, 96 kHz

 

Digital input level

 

 

 

 

 

 

Coaxial, 75 Ω

0.5 Vp-p

 

 

 

 

Optical, 660 nm

-15 ~ -21 dBm

 

Video Section

 

 

 

 

 

 

Video format PAL

 

 

 

 

 

 

Input sensitivity(=Output level), 75 Ω

 

 

 

 

Video (Composite(normal))

1 Vp-p

 

S-Video (luminance signal)

1 Vp-p

 

(chrominance signal)

 

0.286 Vp-p

FM Tuner Section

 

 

 

 

 

 

Tuning frequency range

87.5~108 MHz

 

Usable sensitivity, THD 3%, S/N 26 dB

17.2 dBf

46 dB quieting sensitivity, mono/stereo

20.8/41.2 dBf

Signal to noise ratio, 1 mV, mono/stereo

72/65 dB

Total harmonic distortion, 1 kHz, mono/stereo

0.2/0.4 %

Frequency response, 20 Hz~15 kHz

 

 

1 dB

 

Stereo separation, 65 dBf, 1 kHz 45 dB

 

Capture ratio 4 dB

 

 

 

 

 

 

IF rejection ratio 120 dB

 

 

 

 

AM Tuner Section

 

 

 

 

 

 

Tuning frequency range

522~1611 kHz

 

Usable sensitivity 500

 

V/m

 

 

 

 

Signal to noise ratio 40 dB

Selectivity 25 dB

General

Power supply AC 220 - 240 V, 50/60 Hz

Power consumption 110 W

Dimensions (W H D) 435 73.5 254 mm (17-1/8 2-7/8 10 inches) Weight (Net) 4.2 kg (9.3 Ibs)

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

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Sherwood R-903R manual Specifications, Amplifier Section

R-903R, R-903 specifications

The Sherwood R-903 and R-903R are distinguished models in the realm of audio receivers, showcasing a blend of classic design and cutting-edge technology. These receivers are engineered for both audiophiles and casual listeners, providing a versatile and powerful home audio experience.

The R-903 features a robust 100 watts per channel output, ensuring that even the most demanding audio applications are handled with ease. Its power output makes it suitable for driving a variety of speaker configurations, enabling rich and immersive sound quality. The R-903R enhances this experience with refinements that include upgraded circuitry and improved performance metrics, delivering even cleaner audio fidelity.

One of the standout characteristics of these models is their extensive connectivity options. Both the R-903 and R-903R are equipped with multiple HDMI inputs, allowing seamless integration with modern devices such as Blu-ray players, gaming consoles, and streaming media players. This facilitates an all-in-one entertainment hub, perfect for enjoying movies, music, and gaming with minimal hassle.

The receivers boast advanced audio decoding technologies, including support for Dolby TrueHD and DTS-HD Master Audio. This ensures that users can experience high-resolution audio formats with stunning clarity, making every listening session captivating. Furthermore, they incorporate digital signal processing (DSP), which optimizes sound output based on the acoustics of the listening environment, providing a custom-tailored audio experience.

In terms of user interface, both models feature an intuitive on-screen setup that simplifies installation and configuration. The remote control is thoughtfully designed, giving users easy access to a variety of features, including preset audio modes, equalizer settings, and source selection, making it user-friendly for individuals of all technical backgrounds.

Additionally, both the R-903 and R-903R come with Bluetooth connectivity, granting users the ability to wirelessly stream music from smartphones, tablets, and other compatible devices. This modern feature enhances convenience while preserving the high-fidelity sound that Sherwood is known for.

In summary, the Sherwood R-903 and R-903R are exemplars of modern audio receivers, merging traditional strengths with innovative technologies. Their powerful output, extensive connectivity, and advanced audio processing capabilities make them ideal choices for anyone looking to elevate their sound experience in home entertainment. Whether for music, movies, or gaming, these receivers deliver unmatched performance and versatility.