xSURR BACK SP (Surround back speaker size)

When the surround speakers are set to “NO”, the surround back speakers are also automatically set to “NO” and the setting cannot be changed.

•LARGE

If you connect a large speaker that will effectively reproduce bass frequencies, select “LARGE”. Normally, select “LARGE”. However, if the front speakers are set to “SMALL”, you cannot set the surround back speaker to “LARGE”.

•SMALL

If the sound is distorted, or you feel a lack of surround effects when using multi channel surround sound, select “SMALL” to activate the bass redirection circuitry and output the surround back channel bass frequencies from the front speakers (if set to “LARGE”) or sub woofer.

•NO

If you did not connect a surround back speaker, select “NO”.

Tip

The LARGE and SMALL settings for each speaker determine whether or not the internal sound processor will cut the bass signal from that channel. When the bass is cut from a channel, the bass redirection circuitry sends the corresponding bass frequencies to the sub woofer or other “LARGE” speakers. However, since bass has a certain amount of directionality, it best not to cut them, if possible. Therefore, even when using small speakers, you can set them to “LARGE” if you want to output the bass frequencies from that speaker. On the other hand, if you are using a large speaker, but prefer not to have bass frequencies output from that speaker, set it to “SMALL”.

If the overall sound level is lower than you prefer, set all speakers to “LARGE”. If there is not enough bass, you can use the equalizer to boost the bass levels. To adjust the equalizer, see page 45.

xSURR BACK L/R (7.1 channel/ 6.1 channel switching)

•YES

If you connect two surround back speakers, select “YES”. The sound will be output to a maximum of 7.1 channels.

•NO

If you connect only one surround back speaker, select “NO”. The sound will be output to a maximum of 6.1 channels.

xSUB WOOFER (Sub woofer selection)

• YES

If you connect a sub woofer, select “YES”.

•NO

If you did not connect a sub woofer, select “NO”. This activates the bass redirection circuitry and outputs the LFE signals from other speakers.

Tip

In order to take full advantage of the Dolby Digital bass redirection circuitry, we recommend setting the sub woofer’s cut off frequency as high as possible.

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Getting Started

23GB

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Sony STR-DA4ES 23GB, Surr Back SP Surround back speaker size, Surr Back L/R 7.1 channel/ 6.1 channel switching
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STR-DA4ES specifications

The Sony STR-DA4ES is a high-performance AV receiver that has garnered attention from audiophiles and home theater enthusiasts alike. Launched during the early 2000s, this model represents a blend of advanced technology and user-friendly design, making it a popular choice for those seeking immersive audio and video experiences.

One of the key features of the STR-DA4ES is its impressive power output. With 110 watts per channel across seven channels, the receiver delivers ample amplification to fill large rooms with rich, dynamic sound. It supports multiple audio formats, including Dolby Digital, DTS, and the advanced DSD for high-resolution audio. This versatility ensures that users can enjoy various content, from movies to music, without compromising on audio quality.

The receiver is equipped with a highly sophisticated digital signal processor (DSP) that optimizes sound reproduction. The Digital Cinema Sound technology enhances the listening experience by simulating different acoustics, allowing for a more immersive experience. Among its highlighted features is the automatic speaker calibration system, known as "Digital Auto Calibration," which fine-tunes the audio setup based on room characteristics. This feature simplifies the installation process by automatically adjusting settings for optimal sound.

The STR-DA4ES also boasts a range of connectivity options, including multiple HDMI inputs and outputs, component video inputs, and various digital and analog audio inputs. This ensures seamless integration with a wide array of devices, from Blu-ray players to gaming consoles, facilitating a comprehensive home theater setup. Additionally, the presence of dual-zone functionality allows for separate audio output in different rooms, catering to various listening preferences.

Another noteworthy characteristic of the STR-DA4ES is its robust build quality and aesthetic appeal. With a sleek, modern design, the unit complements any home decor while featuring a user-friendly interface that makes navigating settings straightforward. The remote control is intuitive, providing quick access to essential functions and custom presets.

In summary, the Sony STR-DA4ES stands out for its powerful performance, advanced processing capabilities, and versatile connectivity options, making it an excellent choice for home theater enthusiasts. Whether you're watching movies, playing games, or listening to music, it promises a captivating audio experience that elevates any entertainment setup.
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