SPL Crossover - VU Meters

14
VU Meters
VU Meters
The VU meters () display the levels of the selected source in a range from
- dB to + dB.  dB corresponds to + dBu.
Select the source for the VU meter with the VU meter source switch (): Input (stereo
input), LOW (subwoofer outputs), MID-HI (top speaker outputs).
If necessary you can lower the sensitivity by  or  dB with the VU level switch (). The VU
meters then display up to + dB. The ballistics of the VU meters guarantee an optimal visual
perception. The time calibration complies with the requirements of the BBC. The rise time up
to  dB is about  ms.
5
0
6
0
7
0
8
5
1
0
0
1
2
0
X
-
O
V
E
R
|
H
z
VOLTAiR
120V DC Audio Rail
ON
LOW CUT
StereoMono
2412
PHASE
LOW MID-HI
ROLL-OFF | dB
Crossover
X-OVER
OUT
20HzOffOnOff
VU
MID-HILOW
Input
Active Crossover
0
1
8
0
5
0
6
0
7
0
8
5
1
0
0
1
2
0
X
-
O
V
E
R
|
H
z
P
H
A
S
E
|
Ø
°
VU
120
6
Var
-180°
Var
0°
Off
-
1
0
-
9
.
5
-
8
.
5
-
6
.
7
-
5
.
2
-
4
.
2
-
3
.
2
-
2
.
3
-
1
.
5
-
0
.
5
0
1
.
0
1
.
6
2
.
5
3
.
5
4
.
5
5
.
5
6
.
7
8
.
0
9
.
5
1
0
20
0
%
–
+
30
50
70
100
10
7
5 3
1
0
3
5
VU
20
0
%
–
+
30
50
70
100
10
7
5 3
1
0
3
5
VU
L
O
W
L
E
V
E
L
|
d
B
5
0
6
0
7
0
8
5
1
0
0
1
2
0
X
-
O
V
E
R
|
H
z
VOLTAiR
120V DC Audio Rail
ON
LOW CUT
StereoMono
2412
PHASE
LOW MID-HI
ROLL-OFF | dB
Crossover
X-OVER
OUT
20HzOffOnOff
VU
MID-HILOW
Input
Active Crossover
0
1
8
0
5
0
6
0
7
0
8
5
1
0
0
1
2
0
X
-
O
V
E
R
|
H
z
P
H
A
S
E
|
Ø
°
VU
120
6
Var
-180°
Var
0°
Off
-
1
0
-
9
.
5
-
8
.
5
-
6
.
7
-
5
.
2
-
4
.
2
-
3
.
2
-
2
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3
-
1
.
5
-
0
.
5
0
1
.
0
1
.
6
2
.
5
3
.
5
4
.
5
5
.
5
6
.
7
8
.
0
9
.
5
1
0
20
0
%
–
+
30
50
70
100
10
7
5 3
1
0
3
5
VU
20
0
%
–
+
30
50
70
100
10
7
5 3
1
0
3
5
VU
L
O
W
L
E
V
E
L
|
d
B
5
0
6
0
7
0
8
5
1
0
0
1
2
0
X
-
O
V
E
R
|
H
z
VOLTAiR
120V DC Audio Rail
ON
LOW CUT
StereoMono
2412
PHASE
LOW MID-HI
ROLL-OFF | dB
Crossover
X-OVER
OUT
20HzOffOnOff
VU
MID-HILOW
Input
Active Crossover
0
1
8
0
5
0
6
0
7
0
8
5
1
0
0
1
2
0
X
-
O
V
E
R
|
H
z
P
H
A
S
E
|
Ø
°
VU
120
6
Var
-180°
Var
0°
Off
-
1
0
-
9
.
5
-
8
.
5
-
6
.
7
-
5
.
2
-
4
.
2
-
3
.
2
-
2
.
3
-
1
.
5
-
0
.
5
0
1
.
0
1
.
6
2
.
5
3
.
5
4
.
5
5
.
5
6
.
7
8
.
0
9
.
5
1
0
20
0
%
–
+
30
50
70
100
10
7
5 3
1
0
3
5
VU
20
0
%
–
+
30
50
70
100
10
7
5 3
1
0
3
5
VU
L
O
W
L
E
V
E
L
|
d
B
I
F
R