Vizio E 131 Applications, Feedback Prevention, Room Equalization, Sound Pressure Level

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Applications

Feedback Prevention

When the overall gain of a sound system is increased, feedback will occur at frequencies where the system response has peaks. Suppose the system has an uneven frequency response like that shown in the following diagram. The frequency at which feedback will occur when gain is increased is about 500Hz. In this case, feedback may be

Room Equalization

In a sound reinforcement system for a room, the clarity of sound can be adversely affected by the room frequency response including standing waves (room resonances), reflections of sound, and relations between direct and indirect sound.

Sound Pressure Level

prevented by attenuating levels at 500Hz by 3dB to 5dB with the E131. If the overall gain is again gradually increased, feedback will occur next at about 125Hz. It may be stopped by attenuating the levels 2dB to 3dB at that frequency. In this procedure, sufficient gain in the sound system is obtained before feedback.

The E 131 is an effective tool to equalize the room frequency response to a flat response and improve sound clarity.

For example, suppose that there is a room frequency response as shown below.

Frequency

The equalizer sliders are set as shown below.

The overall response after equalization will then be as follows.

 

Frequency response

Frequency response

Before equalization

of equalizer

after equalization

Sound Pressure Level

Frequency

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Contents Model E Contents PrecautionsFeatures General DescriptionSpecifications AppearancePerformance Graphs Front Panel Rear Panel Mixing Console RX-7 131 L 131 R Input / Output ConnectionsSpeaker System Ground Loops Installation PrecautionsOn the road use Room Equalization ApplicationsFeedback Prevention Sound Pressure LevelApplications Equalization for music133-02-674-8

E 131 specifications

Vizio E 131 is an impressive addition to the company's lineup of televisions, providing consumers with a blend of affordability and advanced technology. This model is Ideal for those seeking high-quality viewing experiences without breaking the bank. The E 131 boasts a sleek design that fits well into any living space, making it an attractive centerpiece for home entertainment setups.

One of the standout features of the Vizio E 131 is its Full HD resolution, which delivers stunning picture clarity and vibrant colors. With a resolution of 1920x1080 pixels, every scene is rendered in precise detail, enhancing the overall viewing experience, whether you are streaming your favorite shows, gaming, or watching movies.

The Smart TV functionality of the E 131 takes entertainment to the next level. With built-in Wi-Fi, users can access an array of popular streaming services, including Netflix, Hulu, and Disney+. The intuitive interface makes navigation seamless and user-friendly, allowing families to easily browse through their preferred content and discover new shows and films.

In addition to its smart capabilities, the Vizio E 131 incorporates advanced audio technology. The TV is equipped with high-quality built-in speakers that produce clear and immersive sound, enhancing the audio experience while watching action-packed films or sports events. For those who desire even more audio depth, the TV is compatible with external sound systems and soundbars, further elevating the home theater experience.

Connectivity options are plentiful with the Vizio E 131. The model features multiple HDMI ports, USB ports, and a composite input, making it easy to connect different devices such as gaming consoles, Blu-ray players, and streaming devices. This versatility ensures that users can set up their home entertainment system according to their needs and preferences.

Energy efficiency is another characteristic of the Vizio E 131. Designed to consume less power, this television helps reduce electricity bills while being mindful of the environment.

Overall, the Vizio E 131 combines impressive picture quality, smart features, robust audio output, and connectivity options in a stylish package. This makes it an excellent choice for those seeking an affordable but feature-rich television for everyday entertainment. It's a fantastic option for modern households looking to enhance their viewing experience without compromising on quality.
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