Alto HPA4, Руководство пользователя

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Background musical signals
ain nput M I
Vocal signal
AUX In 1
5.4 The HPA4 in Mono / Stereo Application
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.
10
LTO
INPUT LEVEL(dBu)
DIRECT IN
INPUT GAIN
OUTPUT LEVEL(dBu)
MUTE R L
3
MONO
2 4
5
6
1
0
4-Channel
HEADPHONE
AMPLIFIER
HPA4
0
15 15
CHANNEL 1
BASS
HEADPHONE OUT
TREBLE
OUTPUT GAIN
0
AUX IN
15 15
2 4
5
6
1
0
3
0 12 CLIP
OUTPUT LEVEL(dBu)
18 12 6 6
MUTE R L MONO
AUX
BALANCE OUTPUT GAIN
2 4
5
6
1
0
0
15 15
BASS
HEADPHONE OUT
TREBLE
0
AUX IN
15 15
0 12 CLIP
OUTPUT LEVEL(dBu)
18 12 6 6
MUTE R L MONO
AUX
BALANCE OUTPUT GAIN
2 4
5
6
1
0
3
MAIN SECTION
0
15 15
BASS
HEADPHONE OUT
TREBLE
0
AUX IN
15 15
0 12 CLIP
OUTPUT LEVEL(dBu)
18 12 6 6
MUTE R L MONO
0
15 15
BASS
HEADPHONE OUT
TREBLE
0
AUX IN
15 15
AUX
BALANCE OUTPUT GAIN
2 4
5
6
1
0
3
CHANNEL 2 CHANNEL 3 CHANNEL 4
ON
OFF
POWER
MUTE MUTE MUTE MUTE
MAIN IN MAIN IN MAIN IN AUX
BALANCE
MAIN IN
3
0 12 CLIP 18 12 6 6 0 CLIP 18 12 6 6 18 18 18 12 18 18
R
Headphone Output 1
The HPA4 4-Channel Headphone Amplifier can be switched between the Mono and Stereo operational mode via