SPL Crossover - LOW Section; OUT Mono;Stereo

10
LOW Section
LOW Section
In the LOW section you control the crossover frequency, the level, the phase of the LOW section. You also select
whether your playback system has a single subwoofer or two subwoofers.
OUT Mono/Stereo
If your playback system consists of two top speakers and a single supwoofer (. set-up)
set the Mono/Stereo switch () to mono. The left and right channels are then summed to
mono.
The mono LOW signal is passed to both outputs L and R (). You can select either one to drive your subwoofer.
X-OVER | Hz
The LOW crossover filter is a Linkwitz/Riley design. The roll-off is  dB per octave.
Set the crossover frequency with the LOW X-OVER switch(). Available crossover frequen-
cies are: , , , ,  and  Hz.
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
.
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