Nilfisk Alto EQU User Manual
5
5
EQU231TWIN
20
31.5
50
100
200
500
1.25K
2.5K
6.3K
12.5K
25
40
80
160
400
1K
2K
5K
10K
63
125
315
800
250
630
1.6K
4K
3.15K
8K
16K
20K
LEVEL
Channel One
Channel Two
Dual 31 Band Graphic Equalizer
20
31.5
50
100
200
500
1.25K
2.5K
6.3K
12.5K
25
40
80
160
400
1K
2K
5K
10K
63
125
315
800
250
630
1.6K
4K
3.15K
8K
16K
20K
LEVEL
POWER
BY-PASS
RANGE
HI-PASS LOW-PASS
CLIP
40Hz
16 KHz
12
6
ON
OFF
BY-PASS
RANGE
HI-PASS LOW-PASS
CLIP
40Hz
16 KHz
12
6
LTO
R
1. Filter level controls
Each one of these linear potentiometers will boost or attenuate (either
Each one of these linear potentiometers will boost or attenuate (either
6dB or
12dB) the selected
frequency at a preset bandwidth.
When all the sliders are in the centre position, the output of the equalizer is flat response.
When all the sliders are in the centre position, the output of the equalizer is flat response.
EQU231TWIN Front Panel
1
14
POWER
20
31.5
50
100
200
500
1.25K
2.5K
6.3K
12.5K
25
40
80
160
400
1K
2K
5K
10K
63
125
315
800
250
630
1.6K
4K
3.15K
8K
16K
20K
LEVEL
Channel One
Channel Two
20
31.5
50
100
200
500
1.25K
2.5K
6.3K
12.5K
25
40
80
160
400
1K
2K
5K
10K
63
125
315
800
250
630
1.6K
4K
3.15K
8K
16K
20K
LEVEL
EQU231VU
31 Band Graphic Equalizer
RANGE
BYPASS
HI-PASS
40Hz
LOW-PASS
16KHz
CLIP
6
12
BY-PASS
16KHz
40Hz
HI-PASS
40Hz
LOW-PASS
16KHz
BYPASS
ON
OFF
RANGE
LTO
R
6
12
BY-PASS
CLIP
16KHz
40Hz
1
2
11
13
12
4
3
6
8 5 7 10
POWER OUTPUT
LTO
R
POWER OUTPUT
LTO
R
EQU231VU Front Panel
1
2
10
14
Channel One
Channel Two
20
31.5
50
100
200
500
1.25K
2.5K
6.3K
12.5K
25
40
80
160
400
1K
2K
5K
10K
63
125
315
800
250
630
1.6K
4K
3.15K
8K
16K
20K
LEVEL
BY-PASS
RANGE
HI-PASS LOW-PASS
CLIP
40Hz
16 KHz
BY-PASS
RANGE
HI-PASS LOW-PASS
CLIP
40Hz
16 KHz
POWER
EQU231LED
Dual 31 Band Graphic Equalizer
ON
OFF
20
31.5
50
100
200
500
1.25K
2.5K
6.3K
12.5K
25
40
80
160
400
1K
2K
5K
10K
63
125
315
800
250
630
1.6K
4K
3.15K
8K
16K
20K
LEVEL
12
12
6
6
LTO
R
3 12 13 5
4
7
9 8
EQU231LED Front Panel
EQU131VU
31 Band Graphic Equalizer
BY-PASS
RANGE
HI-PASS LOW-PASS
POWER
ON
OFF
CLIP
40Hz
16 KHz
20
31.5
50
100
200
500
1.25K
2.5K
6.3K
12.5K
25
40
80
160
400
1K
2K
5K
10K
63
125
315
800
250
630
1.6K
4K
3.15K
8K
16K
20K
LEVEL
6
12
LTO
LTO
R
1
2
3 12 13 5
11
4
7
9 8
POWER OUTPUT
LTO
R
EQU131VU Front Panel
10
2
10
3 12 13
5
4
7
9 8
0
+12
+6
-12
- 6
+13
+ 9
0dB
- 9
-13
+17
-
0
+12
+6
-12
- 6
+13
+ 9
0dB
- 9
-13
+17
-
0
+12
+6
-12
- 6
+13
+ 9
0dB
- 9
-13
+17
-
0
-
0dB
+17
+12
+6
-12
- 6
0
-
0dB
+17
+12
+6
-12
- 6
0
-
0dB
+17
+12
+6
-12
- 6
0
-
0dB
+17
+12
+6
-12
- 6