SPL Crossover - PHASE; LEVEL

11
LOW Section
PHASE
Use the PHASE switch () and the PHASE potentiometer () to time-allign the subwoof-
er(s) with the top speakers. This is especially useful when the subwoofer is placed else-
where in the room.
If you set the PHASE switch to position “Var -°”, you set the phase of the LOW signal
with the phase potentiometer from -° to °.
If you set the Phase switch to position “Var °”, you set the phase of the LOW signal with
the phase potentiometer from ° to °.
LEVEL
Set the overall level of the subwoofer(s) with the LOW LEVEL potentiometer (). The
control has a range of +/- dB. It allows to finely control the level of your subwoof-
er(s) in relation to your top speakers.
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
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5
-
6
.
7
-
5
.
2
-
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2
-
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2
-
2
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3
-
1
.
5
-
0
.
5
0
1
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0
1
.
6
2
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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
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2
-
2
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3
-
1
.
5
-
0
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5
0
1
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0
1
.
6
2
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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
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2
-
2
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3
-
1
.
5
-
0
.
5
0
1
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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