3-35CrossPoint 450 Plus and MAV Plus Switchers • Operation
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.
Audio
Inputs
Audio
Inputs
VCR
No noticeable
volume differences
between sources
Audio System
Crosspoint 450 Plus 3232
0
-3
-6
-9
-12
-15
Low Audio
utput Level
+4
+1
-2
-5
-8
-12
-18
-21
-15
-18
3 +7
6 +10
9 +13
12 +16
15 +19
18 +21
21 +24
0
-3
-6
-9
-12
-15
High Audio
utput Level
+4
+1
-2
-5
-8
-12
-18
-21
-15
-18
3 +7
6 +10
9 +13
12 +16
15 +19
18 +21
21 +24
VU dBu
I
N
P
U
T
S
O
U
T
P
U
T
S
C O N T R O L
I / O
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
POWER SUPPLY
PRIMARY
REDUNDANT
0
-3
-6
-9
-12
-15
Output
Level
+4
+1
-2
-5
-8
-12
-18
-21
-15
-18
3 +7
6 +10
9 +13
12 +16
15 +19
18 +21
21 +24
CROSSPOINT PLUS SERIES SWITCHER WITH ADSP
PRESET
ENTER
ESC
RGBHV
VIEW
AUDIO
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.
