Reading the displayed volume

NThis section is a detailed look at reading the output volume display on the switcher’s front panel. If you do not need to read the exact value of the volume setting, skip this section.

There are 65 steps of volume attenuation, with 1 dB per step (button push), except for step 0-to-1, which is 37 dB. At maximum attenuation, no input buttons are lit, 100 dB of attenuation is applied, and the audio output is effectively muted. At no attenuation, input buttons 1 through 12 are lit and the output volume is equal to the input signal plus any gain or attenuation that is applied to that specific input using the input audio level adjustment. See “Viewing and adjusting the input audio level”.

See the table on the next page. The input buttons blink or light sequentially to indicate the approximate volume of the selected output. Volume is defined as a percentage of the input audio signal that is applied to the output. From 0% of volume, the first Esc (>) button push applies 5.5% of the input audio signal. From

5.5% on, each Esc (>) push applies 1.5% more of the input audio signal to the output:

•Push Esc (>) button again — 5.5% + 1.5% = 7% volume, indicated by the Input 1 button blinking slowly.

•Push Esc (>) button twice more — 7% + 1.5% + 1.5% = 10% volume, indicated by the Input 1 button blinking quickly.

•Push Esc (>) button nineteen times more — 10% + (19•1.5%) = 38.5% volume, indicated by the Input 1 through 4 buttons lit steadily.

When 12 input buttons are lit, the audio output is 100% of the audio input level.

Another way to view the volume level is to think in terms of the attenuation that is applied to the output. Attenuation is indicated by the lit or blinking input buttons: when fewer input buttons are lit, attenuation is greater (and the volume is quieter).

•At minimum volume all input buttons are unlit or background illuminated and the audio output is effectively muted.

•The first step of volume increase causes the Input 1 button to blink slowly.

Attenuation is reduced by 37 dB (63 dB of attenuation is applied to the output).

•The second step of volume increase reduces the attenuation by an additional

1 dB (62 dB of attenuation is applied to the output).

•Successive steps of volume increase cause consecutive buttons to first blink, then light steadily.

•At full volume, no attenuation is applied to the output and all input buttons light steadily.

PRELIMINARY

MPX Plus 866 A Media Presentation Matrix Switcher • Operation 3-39

MPX Plus 866 A specifications

The Extron MPX Plus 866 A is a powerful multimedia presentation switcher designed to meet the needs of modern AV environments. This advanced device simplifies the management of multiple audio and video sources, providing seamless control and connectivity in various settings such as conference rooms, classrooms, and auditoriums.

One of the key features of the MPX Plus 866 A is its ability to handle a wide range of video formats. It supports both HDMI and analog video, allowing for compatibility with different devices. This versatility ensures users can connect laptops, projectors, and other AV equipment without any issues, making it ideal for mixed-use environments where various technologies coexist.

With an 8x8 matrix design, the MPX Plus 866 A can route up to eight different input sources to eight output destinations. This feature enables users to select and switch between sources quickly and efficiently, enhancing the overall presentation experience. Additionally, the device incorporates Extron's high-performance scaling technology, which ensures that video signals are processed with exceptional clarity and detail, regardless of resolution.

Another noteworthy characteristic of the MPX Plus 866 A is its built-in audio capabilities. The switcher includes a comprehensive audio mixer with support for both analog and digital audio signals. This allows users to integrate and control audio sources effectively, ensuring that sound quality matches the visual experience. Furthermore, it features advanced audio processing tools, including equalization and filtering functions, to enhance audio output in any environment.

The MPX Plus 866 A also emphasizes ease of use and accessibility. Its user-friendly interface, combined with an intuitive control system, allows operators to navigate the device with minimal training. Additionally, the switcher supports various control options, including RS-232 and Ethernet, enabling integration into larger AV control systems for centralized management.

In summary, the Extron MPX Plus 866 A stands out as a versatile and reliable multimedia presentation switcher. Its extensive range of input and output options, advanced scaling and audio processing technologies, and emphasis on user-friendly design make it an exceptional choice for any professional AV installation. Whether in an educational setting or corporate environment, the MPX Plus 866 A ensures seamless connectivity and high-quality performance, meeting the demands of today’s multimedia presentations.

Extron electronic MPX Plus 866 A manual Reading the displayed volume

Models: MPX Plus 866 A