Extron electronic 450 Plus Series manual Viewing and adjusting the input audio level audio models

Viewing and adjusting the input audio level (audio models)

On models with audio, the audio level of each input can be displayed and adjusted through a range of -18 dB to +24 dB to ensure that there is no noticeable volume difference among sources (figure 3-56). The audio level can be adjusted from the front panel or under serial port or Ethernet control. The default audio input level is 0 dB.

dBu	VU
+24	21
+21	18
+19	15
+16	12
+13	9
+10	6
+7	3	Audio
+4	0
+1	-3	Inputs
-2	-6
-5	-9
-8	-12
-12	-15
-15	-18
-18	-21

Low Audio

Output Level

dBu	VU
+24	21
+21	18
+19	15
+16	12
+13	9
+10	6
+7	3	Audio
+4	0
		Inputs
+1	-3
-2	-6
-5	-9
-8	-12
-12	-15
-15	-18
-18	-21

VCR

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32

CROSSPOINTPLUS SERIES SWITCHER WITH ADSP

Crosspoint 450 Plus 3232

dBu VU

+24 21

+21 18

+19 15

+16 12

+13 9

+10 6

+7 3

+4 0

+1 -3

-2 -6

-5 -9

-8 -12

-12 -15

-15 -18

-18 -21

Output

Level

Audio System

No noticeable volume differences between sources

High Audio
Output Level	CD Jukebox

Figure 3-56 — Audio gain and attenuation

1.	Press the Esc button to clear any input buttons, output buttons, or control
	buttons that may be lit.
2.	To enter Audio mode, press and hold the Audio button until the button begins
	to blink red, then release the button.
3.	Press and release an input button to select an input. The output buttons
	display audio level and polarity (+ or –) for the selected input. Each lit output
	button indicates 1 dB of gain or attenuation. Green output buttons indicate a
	gain (+) audio level and red buttons indicate an attenuation (–) level.
4.	Press and release the Esc ( ) and View ( ) buttons to increase and decrease
	the audio level.
5.	Press and release the Audio button to exit the Audio mode. The Audio button
	stops blinking.

• Pressing the Enter or Preset button also exits Audio mode. Pressing the Preset button changes to Recall Preset mode.

•There is one audio level setting per input. The audio level setting is shared by the left and right audio inputs.

•The audio level settings 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 configuration to RGBHV (CrossPoint 450 Plus switchers) or video (MAV Plus switchers) and audio selected for configuration.

CrossPoint 450 Plus and MAV Plus Switchers • Operation 3-35