Adjusting the speaker settings

•After you have installed this unit and connected all the components, you should adjust the speaker settings for the optimum sound acoustics according to your environment and speaker layout.

Setting the type of speakers

The composition of the signals output from the different channels and the frequency reponse are adjusted automatically according to the combination of speakers actually being used.

ENGLISH

Select “Large” or “Small” not according to the actual size of the speaker but according to the speaker’s capacity for playing low frequency (bass sound below frequency set for the Crossover Frequency mode and below) signals.

Large : Select this when connecting speakers that can fully reproduce sounds below crossover frequency(*) of your speaker.

Small : Select this when connecting speakers that cannot fully reproduce sound below crossover frequency. When this setting is selected, sound below crossover frequency is assigned to the subwoofer or speakers which are set to “Large”(when not using a subwoofer).

None : Select this when no speakers are connected. When this is selected, sound is sent to the front speakers.

Yes / None : Select the desired depending on whether a subwoofer is connected or not.

(*): Crossover frequency is the frequency (Hz) below which the bass sound of each main speakers is to output from the subwoofer or from speakers which are set to “Large” (when not using a subwoofer).

Refer to the operating instructions of the speakers to be connected. If the frequency range of your speaker is 80 Hz ~ 12 KHz, the crossover frequency is 80 Hz.

If you do not know, try comparing the sound at both settings (setting the volume to a level low enough so as not to damage the speakers) to determine the proper setting.

Depending or relationship between speakers, settings possible for each speaker are as follows:

Front L/R Center		Surr. L/R	Surr. Back	Subwoofer
		Large	Large
		Large	Small

	Large		None

		Small	Small
			Small
			None
			None

		None	None

			Large
		Large	Small	Yes
Large				or
Large	Small		None	or

		Small	Small	None
			Small	None
			None
			None

		None	None

			Large
		Large	Small
	None
	None		None

		Small	Small
		Small	None
			None
		Small	Small

	Small		None
	Small		None
Small		None	None	Yes

	None	Small	Small

			None
			None

Speaker distance settings

When enjoying 5.1 channel surround playback with Dolby Digital and DTS sources, it is ideal that the center and surround speakers should be the same distance from the main listening position as the front speakers. By entering the distance between the listening position and each speaker, the delay times of center and surround speakers are automatically adjusted to create an ideal listening environment virtually as if the center and surround speakers were at their ideal locations respectively as below:

Ideal location of a center speaker

FL	SW			FR
FL	SW	C		FR
			Dc		All speakers should be located	Df : Distance between front speakers and listening position
			Df		All speakers should be located	Df : Distance between front speakers and listening position
			Df		within a circle with a radius of Df	Dc : Distance between center speakers and listening position
						Ds : Distance between surround speakers and listening position

SL SB SR

Ideal location of a surround speaker

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.