User Manual
Crossover – Quickstart Crossover – Quickstart
6 7
VOLTAiR
120V DC A udio Rail
ON
LOW CUT
StereoMono
2412
PHASE
LOW MID-HI
5
0
6
0
7
0
8
5
1
0
0
1
2
0
ROLL-OFF
| dB
Crossover
X-OVER
OUT
20HzOffOnOff
VU
MID-HI
LOW
Input
Active Crossover
0
1
8
0
L
O
W
L
E
V
E
L
|
d
B
X
-
O
V
E
R
|
H
z
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
°
-
1
0
-
9
.
5
-
8
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5
-
6
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7
-
5
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2
-
4
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2
-
3
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2
-
2
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3
-
1
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-
0
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0
1
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0
1
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6
2
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5
3
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5
4
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5
5
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7
8
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0
9
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5
1
0
VU
120
6
Var
-180°
Var
0°
Off
LOW PHASE Control
20
LOW Section Setup
Choose the LOW crossover frequency (Linkwitz Riley low pass lter) with the
LOW X-OVER switch: 50, 60, 70, 85, 100 or 120Hz. The roll-o is 24 dB/octave.
Use the PHASE switch and the PHASE control to shi the LOW signal phase from
-180° to +180° for phase aligning subwoofer and main speaker positions.
If you switch the LOW Mono/Stereo Switch to Mono – both LOW Outputs L and
R feed a LOW mono signal.
The output level of the subwoofer can be varied from -10dB to +10dB with the
LOW Level control.
MID-HI Section Setup
Choose a MID-HI crossover frequency (Linkwitz Riley high pass lter) with the
MID-HI X-OVER switch: 50, 60, 70, 85, 100 or 120Hz.
Select the roll-o with the ROLL-OFF Switch: 12 or 24 dB/octave.
Normally the crossover frequency is equal to the LOW setting.
The MID-HI crossover can be disabled with the MID-HI X-OVER On/O switch in
case the top speakers shall operate full range.
Basic Controls
The Crossover is equiped with a 20Hz low cut lter. If on (20Hz) the input signal
is ltered below 20Hz by 12dB/octave for both frequency ranges – LOW and
MID-HI.
With the VU meter sensitivity switch you can lower the displayed VU levels by 6
or 12dB in case you are running hot signal levels.
You can select the VU meter source: the LOW frequency range, the MID-HI
frequency range or the input signal.
19
20
21
22
23
24
25
26
27
28
LOW X-OVER Switch
LOW Level Control
LOW Mono/Stereo Switch
LOW PHASE Switch
20
19
22
21
VOLTAiR
120V DC A udio Rail
ON
LOW CUT
StereoMono
2412
PHASE
LOW MID-HI
5
0
6
0
7
0
8
5
1
0
0
1
2
0
ROLL-OFF
| dB
Crossover
X-OVER
OUT
20HzOffOnOff
VU
MID-HILOW
Input
Active Crossover
0
1
8
0
L
O
W
L
E
V
E
L
|
d
B
X
-
O
V
E
R
|
H
z
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
°
-
1
0
-
9
.
5
-
8
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5
-
6
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7
-
5
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2
-
4
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2
-
3
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2
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2
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3
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1
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5
-
0
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5
0
1
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0
1
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6
2
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5
3
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5
4
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5
5
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5
6
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7
8
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0
9
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5
1
0
VU
120
6
Var
-180°
Var
0°
Off
MID-HI X-OVER Switch
MID-HI ROLL OFF Switch
24
23
MID-HI X-OVER On/O Switch
25
EN
DE
LOW CUT
26
VU Meter Input Switch
28
VU Meter Sensitivity
27