Glossary

Additional Information

Center mode

Setting of speakers to enhance Dolby Pro Logic Surround mode. To obtain the best possible surround sound, select one of the four center modes (WIDE, NORMAL, PHANTOM or 3 CH LOGIC) according to your speaker system.

Dolby Pro Logic Surround

Decoding system of Dolby Surround sound standardized in TV programs and movies. Compared with the former Dolby Surround system, Dolby Pro Logic Surround improves sound image by using four separate channels: off- screen audio effects, on-screen dialog, left-to-right panning, and music. These channels manipulate the sound to be heard and enhance the action as it happens on the screen.

Dolby Surround

Encoding and decoding system of Dolby Surround sound for consumer use. Dolby Surround decodes the extra channels on the Dolby Surround- encoded sound tracks of movie videos and TV programs and produces sound effects and echoes that make the action seem to envelop you.

The receiver offers Dolby Surround (PRO LOGIC) as one of the pre- programmed sound fields. If you have rear or center speaker(s), we recommend that you customize the Dolby Surround sound field by selecting the appropriate center mode to take advantage of Dolby Pro Logic Surround sound.

Effect level

Combination of the level of early reflections and reverberation. You can adjust the effect level in 6 levels. As you select higher levels, the room becomes “live,” and as you select lower levels, the room becomes “dead.”

Parameter

Variable of sound that composes sound image, such as tone or delay time. You can customize the pre-programmed sound fields by adjusting parameters to suit your listening situation.

Sound field

Sound pattern produced by a sounding source or sources in a given environment due to direct and reflected sounds and the acoustics of the environment. The receiver offers pre- programmed sound fields to let you enjoy surround sound easily.

Surround sound

Sound that consists of three elements: direct sound, early reflected sound (early reflections) and reverberative sound (reverberation). The acoustics where you hear the sound affect the way these three sound elements are heard. These sound elements are combined in such a way that you can actually feel the size and the type of a concert hall.

• Types of sound

Early reflections		Reverberation
Early reflections

Direct sound

•Transition of sound from rear speakers

Direct sound Early
reflections	Reverberation
Level
Early reflection time	Time

STR-DA90ESG specifications

The Sony STR-DA90ESG is a high-performance A/V receiver that made waves in the late 1990s, becoming a favorite among audiophiles and home theater enthusiasts. This 5.1-channel receiver is recognized for its robust build quality and an impressive array of features that elevate the home entertainment experience.

At the heart of the STR-DA90ESG is its powerful amplification system. It delivers a continuous 90 watts per channel into 8 ohms, allowing for crystal-clear sound reproduction across a diverse range of audio frequencies. The receiver supports Dolby Digital and DTS formats, enhancing the surround sound experience for movies and music, making it a solid choice for home cinema setups.

One of the standout features of the STR-DA90ESG is its Digital Signal Processing (DSP) capabilities. The receiver includes various sound modes that can be tailored to suit different listening environments. Users can choose from multiple surround simulation settings to create an immersive audio experience, whether during a blockbuster movie or while listening to music.

The receiver is equipped with multiple input options, including six audio inputs and three video inputs, ensuring compatibility with a variety of devices. The inclusion of component video inputs allows for connections to high-definition sources, which was ahead of its time, catering to the evolving consumer landscape of the late 90s. This versatility makes it easy for users to switch between devices seamlessly, enhancing user convenience.

Another defining characteristic of the STR-DA90ESG is its build quality. Sony has a longstanding reputation for creating durable and reliable products, and this receiver is no exception. The solid chassis helps reduce vibrations and electromagnetic interference, which contributes to better sound quality overall.

In terms of user interface, the receiver offers a straightforward LED display and an intuitive remote control that facilitates easy navigation through settings and adjustments. The ability to store custom sound settings also adds a personal touch to the listening experience.

Overall, the Sony STR-DA90ESG stands as a testament to the brand's commitment to quality audio and video performance. Its blend of powerful amplification, versatile connectivity, and user-friendly features makes it a timeless choice for those looking to enhance their home entertainment setup. Even years after its release, the STR-DA90ESG remains a respected component in the realm of audio and home theater systems.

Sony STR-DA90ESG manual Glossary

Models: STR-DA90ESG