2 use the hpa6 as independent power amplifiers, Hpa6 – Nilfisk-ALTO HPA6 User Manual
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9
program source
Direct in
Headphone output1
AUX in 1
AUX in 2
AUX in 3
AUX in 4
AUX in 5
AUX in 6
24
18
12
6
0
6
12
18
INPUT LEVEL(dBu)
MAIN SECTION
HPA6
6-Channel
HEADPHONE
AMPLIFIER
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 1
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 2
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 3
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 4
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 5
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 6
POWER
R
LTO
DIRECT IN
BALANCED
AUX IN
BALANCED
AUX IN
BALANCED
AUX IN
BALANCED
AUX IN
HEADPHONE OUT
HEADPHONE OUT
HEADPHONE OUT
HEADPHONE OUT
INPUT GAIN
2
3
4
5
6
1
0
AUX
MAIN IN
1
OUTPUT GAIN
3
2
4
5
6
0
AUX
OUTPUT GAIN
2
3
4
5
6
1
0
OUTPUT GAIN
2
3
4
5
6
0
1
AUX
AUX
1
OUTPUT GAIN
2
3
4
5
6
0
L
MUTE
R
MONO
STEREO
L
MUTE
R
MONO
STEREO
L
MUTE
R
MONO
STEREO
L
MUTE
R
MONO
STEREO
MONO
STEREO
L
MUTE
R
L
MUTE
R
MONO
STEREO
ON
OFF
BALANCED
AUX IN
HEADPHONE OUT
MAIN IN
AUX
OUTPUT GAIN
2
3
4
5
6
1
0
BALANCED
AUX IN
HEADPHONE OUT
MAIN IN
AUX
OUTPUT GAIN
2
3
4
5
6
1
0
Headphone output2
Headphone output3
Headphone output4
Headphone output5
Headphone output6
5.2 Use the HPA6 as Independent Power Amplifiers
dent stereo program sources to the mixing console, and consequently, six different and individual monitor facilities
for up to six musicians can be created.
Headphone output1
Headphone output2
Headphone output3
Headphone output4
Headphone output5
Headphone output61
24
18
12
6
0
6
12
18
INPUT LEVEL(dBu)
MAIN SECTION
HPA6
6-Channel
HEADPHONE
AMPLIFIER
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 1
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 2
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 3
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 4
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 5
24
0
12 CLIP
OUTPUT LEVEL(dBu)
CHANNEL 6
POWER
R
LTO
DIRECT IN
BALANCED
AUX IN
BALANCED
AUX IN
BALANCED
AUX IN
BALANCED
AUX IN
HEADPHONE OUT
HEADPHONE OUT
HEADPHONE OUT
HEADPHONE OUT
INPUT GAIN
2
3
4
5
6
1
0
AUX
MAIN IN
1
OUTPUT GAIN
3
2
4
5
6
0
AUX
OUTPUT GAIN
2
3
4
5
6
1
0
OUTPUT GAIN
2
3
4
5
6
0
1
AUX
AUX
1
OUTPUT GAIN
2
3
4
5
6
0
L
MUTE
R
MONO
STEREO
L
MUTE
R
MONO
STEREO
L
MUTE
R
MONO
STEREO
L
MUTE
R
MONO
STEREO
MONO
STEREO
L
MUTE
R
L
MUTE
R
MONO
STEREO
ON
OFF
BALANCED
AUX IN
HEADPHONE OUT
MAIN IN
AUX
OUTPUT GAIN
2
3
4
5
6
1
0
BALANCED
AUX IN
HEADPHONE OUT
MAIN IN
AUX
OUTPUT GAIN
2
3
4
5
6
1
0
Instead of using the HPA6 as the Headphone Amplifier, in many particular circumstances, it can also be conducted
as the independent power amplifiers, as for this kind of application, please turn the Balanced Control to complete
clockwise.
By setting the Balanced Control to AUX position, the Main signal will then be muted, only the signals coming
from Aux In Input can be routed to the headphone amplifiers circuit. So, now, you can apply up to six indepen-