Audio Gain and Attenuation Adjustments

Individual audio inputs can be adjusted over a range

 

of -18 dB to +24 dB using the program audio mute

 

button and program audio volume control knob.

 

These adjustments can be used to normalize

dB

the input audio levels so that output volume is

+24

consistent for all inputs.

+23

The front panel input LEDs provide a status of

+22

+21

the current input gain/attenuation levels. When

+20

adjusting the audio level, the LEDs used for inputs

1-8 (VGA inputs 1-2, DVI inputs 1-2, HDMI inputs

+19

1-3, and video input 1) function as indicators of the

+18

current audio level for the selected input as shown

+17

in the table.

+16

The LED input associated with video Input 2

+15

+14

functions as an indicator of gain (+) or attenuation

+13

(–). If Input LED 9 (video input 2) is off, audio is

+12

at a positive level (gain). If the LED is on, audio is

negative (attenuated).

+11

To adjust the input audio level from

+10

+9

the front panel:

+8

1. Press and hold the Program Audio Mute AND

+7

Mic mute buttons for 3 seconds. The two Mute

+6

LEDs flash three times.

+5

2. Press the input button for the audio to be

+4

+3

adjusted. If no input button is pressed, the

 

switcher times out and exits audio level

+2

adjustment mode.

+1

3. Once the input button is pressed, the front

0

-1

panel input LEDs indicate the current gain or

-2

attenuation setting. Factory default is 0 dB (all

 

LEDs off). Rotate the Program volume knob

-3

clockwise to increase and counterclockwise to

-4

decrease the audio level. The front panel LEDs

-5

display the level setting as the knob is adjusted.

-6

4. Once the desired level is achieved, to adjust

-7

 

another input, select it within 3 seconds. If

-8

audio adjustments are complete:

-9

a. Do not press any front panel buttons for at

-10

-11

least 3 seconds to exit the gain/attenuation

-12

mode, or

 

b. Press the program audio and Mic mute

-13

-14

buttons to exit the gain/attenuation mode.

-15

 

At any time during the adjustments, if front panel

-16

buttons are not pressed or the program knob is not

-17

rotated for 3 seconds, the switcher times out and

-18

the gain/attenuation mode is exited.

 

= on,

Front Panel LEDs

 

 

 

1

 

2

 

1

 

2

 

1

 

2

 

3

1

2

 

 

 

 

 

 

Input

Input

Input

 

Input Input

 

 

 

Input

 

Input

Input

 

 

 

V

 

 

 

Input

 

 

 

 

V

 

 

DVI

 

DVI

 

HDMI HDMI

HDMI

Video

Video

 

GA

GA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

5

 

 

6

7

 

8

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

1

 

2

 

3

 

4

 

 

5

 

 

6

7

 

8

 

9

 

 

F

= blinking fast,

 

S = blinking slowly,

= off

MPS 409 • Operation

16

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Extron electronic MPS 409 manual Audio Gain and Attenuation Adjustments, To adjust the input audio level from, Front panel
Page 21 Page 23

MPS 409 specifications

The Extron MPS 409 is a sophisticated multimedia presentation switcher designed to streamline the integration of audio and video in various environments, such as classrooms, conference rooms, and auditoriums. This versatile device is well-known for its ability to simplify the control of multiple sources and enhance the overall presentation experience.

One of the standout features of the MPS 409 is its extensive input capability. This switcher supports a variety of input formats, including HDMI, VGA, composite, and audio, allowing users to connect a wide range of devices such as laptops, projectors, and document cameras. The ability to switch between different input sources with ease is essential for maintaining a seamless flow during presentations, making it a critical tool for educators and presenters alike.

The MPS 409 is equipped with advanced technologies that ensure high-quality signal processing and transmission. The device supports resolutions up to 4K, providing crisp and clear visuals for viewers. Additionally, the integrated scaling feature allows users to select the optimal output resolution for connected displays, ensuring compatibility with a variety of screen sizes and formats.

Another notable characteristic of the MPS 409 is its user-friendly interface. The front panel features intuitive buttons and an LCD display for easy navigation and control. This design makes it accessible for users of all skill levels, enabling quick adjustments during a presentation without complicated procedures. Furthermore, the device supports remote operation through the Extron Control System, enhancing its flexibility in larger setups.

The MPS 409 also includes built-in audio features, such as an integrated amplifier and multiple audio inputs. This ensures that audio playback is synchronized with video outputs, delivering a cohesive audio-visual experience to the audience. The device's compatibility with various audio formats further enhances its functionality, catering to diverse presentation needs.

In conclusion, the Extron MPS 409 multimedia presentation switcher is a powerful tool that combines extensive connectivity, high-quality signal processing, and user-friendly control. Its versatility and support for advanced features make it an excellent choice for anyone seeking to enhance their presentation capabilities in professional and educational environments.
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