Extron electronic MVX 44, MVX 88, MVX 84, 48 manual Adjusting Input Audio Gain and Attenuation

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Adjusting Input Audio Gain and Attenuation

Switchers have input audio gain and attenuation adjustments. In Audio Setup mode, the audio level of each input can be adjusted through a range of –18 dB to +10 dB. This adjustment range ensures that there is no noticeable volume difference among sources. It also eliminates the need for separate preamps or attenuators when used with professional (higher line level) and consumer (lower line level) audio equipment (see figure 12).

dBu

dBv

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

dBu

dBv

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+10

+8

+10

+8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+7

+5

+7

+5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+4

+2

+4

+2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+1

-1

+1

-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-2

-4

-2

-3

 

 

 

Laptop

 

 

 

 

 

 

 

 

 

 

 

 

-5

-7

-5

-7

Audio

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-8

-10

-8

-10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-12

-14

-12

-14

Inputs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-18

-20

-18

-20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output

Low Audio

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level

Output Level

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MVX SERIES

 

 

 

 

 

INPUTS

 

 

 

 

 

 

 

OUTPUTS

 

 

 

 

 

VGA/AUDIO MATRIX SWITCHER

 

 

 

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

ENTER

PRESET

I/O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VID +dB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUD -dB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUDIO SETUP

 

 

 

Audio

 

MVX VGA A Series Switcher

Audio System

 

 

 

 

 

dBu

dBv

Inputs

 

 

 

+10

+8

 

 

 

No noticeable volume

+7

+5

 

 

 

+1

-1

VIDEO INPUT

differences between sources

+4

+2

DAV101CM

VGA LINE DRIVER

 

 

 

 

 

POWER

 

 

-2

-3

 

 

 

 

-5

-7

DAS101 CM

 

-8

-10

 

-12

-14

 

 

 

 

-18

-20

 

 

 

 

High Audio

Output Level

Computer

Figure 12. Audio Gain and Attenuation

In Audio Setup mode, the input that is selected for adjustment is automatically tied to output 1. 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 Audio output level SIS commands in the “Remote Operation” section).

The input audio gain or attenuation can be adjusted from the front panel or by using the Extron Matrix Switchers 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

 

1

2

3

 

 

 

0 – 5 db

 

 

• Output 1

LED lit = 6 dB to 11 dB

6

– 11 db

 

 

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

12

– 17 db

 

 

 

18 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.

MVX 44 / 48 / 84 / 88 VGA Matrix Switchers • Operation 23

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Contents MVX 44 / 48 / 84 / 88 Series Safety Instructions English FCC Class a Notice Extron Electronics. All rights reserved Conventions Used in this GuideVariables are written in slanted form as shown here Contents MVX 44 / 48 / 84 / 88 VGA Matrix Switchers Contents About this Guide About the SwitchersAny input to any or all outputs FeaturesMVX 44 / 48 / 84 / 88 VGA Matrix Switchers Introduction Cabling and Rear Panel Views Mounting the SwitcherVideo and Audio Output Connections Video and Audio Input ConnectionsRS-232 Port Pin Assignment Remote ConnectionPower Connection MVX 88 VGA a Front Panel Front Panel Controls and IndicatorsPower/data/audio LED Infrared Sensor and Power/audio/data LEDInput and Output Selection Controls and Indicators O and Audio Setup button Selection and Audio/video Controls and IndicatorsControl Buttons and LEDs Video/+dB LED and Audio/-dB LEDMVX 44 / 48 / 84 / 88 VGA Matrix Switchers Operation Definitions Powering up the SwitcherOperations Select an input Press and release the input 5 button Creating a Set of TiesExample 1 Create a set of video and audio ties Confirm the change Press and release the Enter button Example 1 ConfigurationSelect the output Press and release the output 1 button Example 2 Add a video tie to a set of video and audio tiesSelect the output Press and release the output 4 button Example 3 Remove a tie from a set of tiesExample 4 View ties by selecting an input Viewing the ConfigurationDeselect audio Press and release the I/O button Press and release the Output 3 button Example 5 View ties by selecting outputsUsing Presets Preset Locations by Matrix Size Example 6 Save a presetExample 7 Recall a preset Audio Gain and Attenuation Adjusting Input Audio Gain and AttenuationSeconds Example 8 Adjust the input audio gainInput 5 LED lights to Adjust the Input Audio Level Example 9 Resetting audio gain single input Front Panel Security Lockout Executive Mode Setting the Output Audio LevelClear all Ties and Presets Clearing all Ties and PresetsMemory Resetting the System to Factory DefaultsOptimizing the Audio TroubleshootingWorksheet Example 1 System Equipment WorksheetsWorksheet Example 2 Daily Configuration Worksheet Example 2 Daily ConfigurationWorksheet Example 3 Test Configuration Worksheet Example 3 Test ConfigurationOutput destinations Configuration WorksheetSmall Matrix IR Remote Control IR Remote ControlSimple Instruction Set Control Host-to-Switcher InstructionsSwitcher-initiated Messages Commands are not case sensitive Switcher Error ResponsesUsing the Command and Response Table Command and Response Table for SIS Commands Symbol definitionsX1 = X1! =Command/Response Table for SIS Commands Directly write a global preset Save, recall, and directly write global presetsRGB delay View ties, gains, mutes, and presetsResets Front panel lockout Executive modeFirmware upload Information requestsClick the Files of type drop box and select All files Loading Firmware Using an SIS CommandSelect the Firmware Upgrade File Installing the Software Matrix Switchers Control ProgramTo run the Matrix Switchers Control Program, click Using the SoftwareStarting the Software Comm Port Selection window appearsMatrix Switchers Control Program Window no Ties Updating the Firmware Location of Firmware Upgrade FilesDownloading Firmware Upgrade Files Extron Firmware Loader Window Click Exit to close the Firmware Loader Windows Buttons, Drop Boxes, and Trash CanWindows menus Tools menu Audio Input Configuration selection Master-Reset selection Choose Emulate, and click OK Using Emulation ModeUsing the Help System Reference Information SpecificationsVideo output Audio input Matrix switcher part numbers Part Number Part Numbers and AccessoriesMVX Part Numbers Included PartsBulk cable and termination tools Optional AccessoriesCables VGA male-to-male cables Part Number Terminated cable assembliesVGA male-to-male with audio cables Part Number VGA male-to-female cables Part NumberMounting Instructions Tabletop UseUL Rack-Mounting Guidelines Europe, Africa, and the Middle China East USA, Canada, South America Japan Central AmericaAsia Middle East Europe
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48, MVX 84, MVX 44, MVX 88 specifications

Extron Electronics is a prominent leader in high-quality AV technology solutions, renowned for its innovative product lines designed to address diverse connectivity and distribution needs. Among their array of offerings, the MVX series stands out, particularly the MVX 44, MVX 84, and MVX 88 models, which cater to various AV signal routing needs within educational institutions, corporate environments, and large spaces.

The Extron MVX 44 is a 4x4 matrix switcher designed for routing HDMI, VGA, and audio signals. One of its key features is its ability to deliver high-resolution video up to 1080p, making it ideal for modern multimedia presentations. The MVX 44 supports EDID management, ensures compatibility with a range of source devices, and features automatic switching capabilities. It also includes a user-friendly interface for seamless operation, allowing simultaneous switching of multiple input sources to multiple outputs.

Expanding on the capabilities of the MVX 44, the MVX 84 and MVX 88 models provide enhanced functionality with additional inputs and outputs. The MVX 84 offers support for up to 8 input sources and 4 output destinations, while the MVX 88 offers 8x8 routing of signals. Both models maintain superior video quality and high-performance signal processing, accommodating more extensive AV systems. They also share features such as HDCP compliance to secure content protection, ensuring that the highest quality video signals are transmitted without degradation.

Technologically advanced, these switchers incorporate Extron's exclusive technologies, such as the Advanced Color Processing for superior color fidelity and signal reliability. Additionally, the Series comes equipped with optional control and integration capabilities, enabling connection to various AV control systems for centralized management.

The Extron MVX series matrices are built with the robustness expected from Extron products, ensuring long-term reliability in demanding environments. The integration of state-of-the-art support for audio signals allows not only video but also audio distribution, making them versatile for any AV setup. In summary, with their rich feature set, impressive scalability, and superior video processing capabilities, the Extron MVX 44, MVX 84, and MVX 88 present compelling solutions for anyone looking to streamline AV signal management in professional setups.
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