5.Exit the Audio mode: Press and release the Audio button.

Press the Audio button to exit audio mode.

I/O

All input LEDs and output LEDs return to the unlit state.

VIDEO AUDIO

The Audio LED stops blinking and lights steadily.

The Video button lights.

Viewing and Adjusting the Output Volume

The audio level of each output can be displayed and adjusted through a range of 100% (no attenuation) to 0% (maximum [76 dB] attenuation). The audio level can be adjusted from the front panel or under RS-232 or Ethernet control.

NOTE: Output volume is protected when front panel Lock mode 2 is selected. You can view the volume in Lock mode 2 but you cannot adjust it from the front panel

(see “Setting the Front Panel Locks (Executive Modes)” on page 47).

1.Press the Esc button to clear any input LEDs, output LEDs, or control LEDs that may be lit.

2.To enter Audio mode, press and hold the Audio button until the LED begins to blink, then release the button.

3.Press and release an output button to select an output. The input LEDs display the volume level for the selected output. The more buttons that are lit, the higher the volume. The fewer buttons that are lit, the lower the volume.

For a more detailed analysis of decoding the displayed value, see “Reading the displayed volume,” below.

4.Press and release the View (<) and Esc (>) buttons to increase and decrease the audio volume.

5.Press and release the Audio button to save the audio settings and exit the Audio mode. The Audio LED stops blinking.

NOTES: •

There is one audio volume level setting per output. The audio level setting

 

is shared by the left and right audio inputs.

•

The audio volume levels are stored in non-volatile memory. When power

 

is removed and restored, the audio level settings are retained.

•

Exiting Audio mode by pressing the Audio button always returns the I/O

 

LEDs to the Video and Audio lit (video and audio selected for configuration).

•

Pressing the Enter or Preset button also exits Audio mode. Pressing the

 

Preset button changes to Recall Preset mode.

Reading the displayed volume

TIP: Skip this section if you do not need to read the exact value of the volume setting.

There are 65 steps of volume attenuation, with 1 dB per step (button push), except for 0-to-1, which is 13 dB. At maximum attenuation, no input LEDs are lit, 76 dB of attenuation is applied, and the audio is effectively muted. At no attenuation, all input LEDs are lit and the output volume is equal to the input signal plus any applied gain or attenuation using the input audio level adjustment (see “Viewing and Adjusting the Input Audio Level”).

MPX 866 A Media Presentation Matrix Switcher • Operation 44

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Extron electronic MPX 866 A manual Viewing and Adjusting the Output Volume, Reading the displayed volume
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MPX 866 A specifications

The Extron MPX 866 A is a powerful multimedia presentation switcher known for its robust functionality and advanced features, ideal for a range of professional environments, particularly in education, corporate, and broadcasting sectors. This device is designed to facilitate seamless switching between multiple audio and video sources, ensuring a smooth and professional presentation experience.

One of the standout features of the MPX 866 A is its ability to handle a variety of input formats, including HDMI, DisplayPort, and analog video signals. This versatility allows users to easily connect different devices, such as laptops, projectors, and video conferencing systems, without the need for additional adapters or converters. The unit supports resolutions up to 4K at 60 Hz, making it suitable for high-definition content display.

The switcher is equipped with Extron’s unique Seamless Switching technology, which provides instantaneous switching between sources without noticeable delays or interruptions. This is particularly beneficial in fast-paced environments where timing is crucial, such as live events or presentations.

Another significant aspect of the MPX 866 A is its advanced audio handling capabilities. It includes integrated audio embedding and de-embedding, allowing users to manage audio signals effectively without compromising quality. The built-in audio delay feature ensures synchronization between audio and video, an essential consideration for professional settings.

For ease of operation, the MPX 866 A offers customizable control options. Users can manage the device through various interfaces, including Extron's user-friendly GUI, third-party control systems, and RS-232 commands. This flexibility makes it easier to integrate the switcher into existing AV setups.

Additionally, the unit incorporates powerful scaling technology, which optimizes image quality by adjusting the resolution of the incoming video signals to match the display capabilities of the output device. This ensures that content appears crisp and clear, regardless of the source resolution.

The MPX 866 A is also designed with reliability in mind, featuring robust construction and a fanless design for silent operation. This makes it suitable for environments where noise reduction is critical.

Overall, the Extron MPX 866 A stands out as a versatile, feature-rich multimedia switcher that enhances the presentation experience. Its advanced technologies and characteristics make it an excellent choice for professionals looking to elevate their audio-visual communication.
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