In Audio Setup mode, whichever input is selected for adjustment is automatically tied to output 1. You can connect a VU meter or an audio system to output 1 to measure or monitor the audio while you perform adjustments.

There are two ways to measure the audio level during audio setup:

•Monitor the input audio level indicator (Power LED) on the front panel.

•Connect a VU meter to output 1 and, if necessary, temporarily set the

output 1 level to the consumer (-10 dBV) level (see the the Audio output level SIS commands in chapter 4, “Remote Operation”).

The input audio gain or attenuation can be adjusted from the front panel or by using Extron’s Windows-based control program or the SIS.

1. Apply audio signals to all inputs to be adjusted.

2. Press and hold the Audio Setup (I/O) button until the Audio Setup LED lights. Release the Audio Setup button.

3. Press and release an input button to select an input. The selected input can be adjusted and is tied to output 1 for measurement or monitoring.

a. The Output 1 through Output 3 LEDs display the approximate audio gain or attenuation for the selected input. The +dB and –dB LEDs display the polarity (+ [gain] or – [attenuation]).

•Each Output 1 through Output 3 LED indicates a range of 6 dB when lit:

Output 1 LED off = 0 dB to 5 dB

Output 1 LED lit = 6 dB to 11 dB

Output 1 and 2 LED lit = 12 dB to 17 dB

Output 1 through Output 3 LEDs lit = 18 dB

•The +dB LED on indicates a positive (gain) level. The –dB LED on indicates a negative (attenuation) level. Both LEDs on indicate 0 dB.

By noting these LEDs’ displays and counting the number of 1 dB steps you increase or decrease the audio level (step 4 and example 8, step 2a), you can determine the exact input gain or attenuation setting.

b. The Power LED blinks to indicate the adjusted audio level (compared to the internal level, -10 dBV):

•When the LED is lit most of the time, blinking off only occasionally, the level is too high.

•When the LED is off most of the time, blinking on (lit) only occasionally, the level is too low.

•When the LED blinks frequently, the level is in the proper range.

c. The < LED lights steadily when the adjustment is at the minimum level (maximum attenuation, -18 dB). The > LED lights steadily when the adjustment is at the maximum gain (+10 dB).

4. Press and release the < and > buttons to increase and decrease the audio level by 1 dB or press and hold the buttons to increase or decrease the level by 3 dB per second. The < or > LEDs flash to indicate each 1 dB level change.

NEach time you press the < or > button, wait for the < or > LED to flash before pushing the button again. Pressing the button too rapidly may not increment or decrement the audio level.

PRELIMINARY

MVX 44 / 48 / 84 / 88 VGA Matrix Switchers • Operation 3-19

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Extron electronic MVX 88 Series manual Preliminary
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MVX 88 Series specifications

The Extron MVX 88 Series is a cutting-edge technology solution designed to facilitate seamless audio and video signal routing in a variety of settings, from educational institutions to corporate environments. This versatile matrix switcher series supports the demanding needs required for high-performance AV distribution.

One of the key features of the MVX 88 Series is its ability to handle multiple input and output formats, including HDMI, VGA, and composite video, ensuring versatility in connecting various devices. It supports resolutions up to 1920x1200 at 60 Hz, providing crystal-clear image quality. The series 8x8 matrix switcher allows users to route any input to any output, offering maximum flexibility in AV configurations. This means that users can easily switch between multiple sources without the need for complex wiring.

Another notable characteristic of the MVX 88 Series is its integrated scaling capabilities. Each output has a built-in video scaler that adjusts the input signal to match the required resolution of the display device. This technology enhances viewing experiences by eliminating compatibility issues, making it easier to connect different devices and ensuring optimal picture clarity.

The Extron MVX 88 Series also boasts advanced audio functionality. It features a built-in audio router and supports various audio formats, allowing users to manage audio signals alongside video. This capability is crucial for applications where synchronized audio and video output is essential, such as presentations and video conferences.

In terms of control, the MVX 88 Series is designed for ease of use. It includes an intuitive front panel interface, allowing users to quickly select inputs and outputs. Additionally, it supports various external control options, including RS-232 and Ethernet, making it compatible with a wide range of control systems. This adaptability simplifies integration into existing AV setups.

Durability and reliability are critical aspects of the MVX 88 Series. It is built to withstand rigorous daily use, featuring a robust enclosure that protects the internal components. Furthermore, Extron's commitment to quality ensures that users can depend on the MVX 88 for consistent performance in all applications.

Overall, the Extron MVX 88 Series stands out in the realm of AV matrix switchers, offering remarkable features, advanced technologies, and user-friendly characteristics that meet the demands of modern AV environments. Whether for classrooms, conference rooms, or control centers, the MVX 88 Series is an ideal solution for comprehensive audio and video management.
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