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INPUT LEVEL(dBu)INPUT LEVEL(dBu)
MAIN SECTIONMAIN SECTION
HPA6
6-Channel
HEADPHONE
AMPLIFIER
2424 0 1212
CLIP
OUTPUT LEVEL(dBu)OUTPUT LEVEL(dBu)
CHANNEL 1
2424 0 1212
CLIP
OUTPUT LEVEL(dBu)OUTPUT LEVEL(dBu)
CHANNEL 2
2424 0 1212
CLIP
OUTPUT LEVEL(dBu)
CHANNEL 3
2424 0 1212
CLIP
OUTPUT LEVEL(dBu)OUTPUT LEVEL(dBu)
CHANNEL 4
2424 0 1212
CLIP
OUTPUT LEVEL(dBu)OUTPUT LEVEL(dBu)
CHANNEL 5
2424 0 1212
CLIP
OUTPUT LEVEL(dBu)OUTPUT LEVEL(dBu)
CHANNEL 6
POWER
R
LTO
DIRECT INDIRECT IN
BALANCED
AUX IN
AUX IN
BALANCED
AUX IN
AUX IN
BALANCED
AUX IN
AUX IN
BALANCED
AUX IN
AUX INHEADPHONE OUTHEADPHONE OUT HEADPHONE OUTHEADPHONE OUT HEADPHONE OUTHEADPHONEOUT HEADPHONE OUTHEADPHONE OUT
INPUT GAININPUT GAIN
2
3
4
5
6
1
0
AUX
MAIN IN
1
OUTPUT GAIN
OUTPUT GAIN
3
2
4
5
6
0
AUX
OUTPUT GAINOUTPUT GAIN
2
3
4
5
6
1
0
OUTPUT GAIN
OUTPUT GAIN
2
3
4
5
6
0
1
AUX
AUX
1
OUTPUT GAIN
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
AUX IN HEADPHONEOUTHEADPHONEOUT
MAIN IN
AUX
OUTPUT GAINOUTPUT GAIN
2
3
4
5
6
1
0
BALANCED
AUX IN
AUX IN HEADPHONEOUTHEADPHONEOUT
MAIN IN
AUX
OUTPUT GAINOUTPUT GAIN
2
3
4
5
6
1
0
5.3 The HPA6 in Studio Application
Generally, the Aux In Inputs are used to feed a further input signal, which can be mixed with the Main/Direct In
signal via Balanced Control, so that, well understood this function, you can get the wonderwork in the studio field.
Normal practice, if you want to record a vocal track which is intended to ride on an already existing background
musical tracks, take it easy, just use the Main Input to feed the musical background signals, and input the Vocal
signal through Aux In.
Background musical signals
ain nputMI
Headphone Output 1
Vocal signal
AUX In 1
5.4 The HPA6 in Mono / Stereo Application
The HPA6 6-Channel Headphone Amplifier can be switched between the Mono and Stereo operational
mode via
Mode Switch control. Press the Mode Switch for Mono application, the Mono LED (8) lights up. In Mono application,
the input two signals are combined together and the resulting mono signal routes to both the Left and Right Head-
phone Out Outputs.