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Alto HPA6 Руководство пользователя

1. Introduction

Thank you very much for expressing your confidence in
annel Headphone Amplifier. With the HPA6 you have acquired an extremely musical and flexible 6-Ch-
annel Headphone Amplifier. Featuring six stereo headphone amplifiers, The
Headphone Amplifier performs a number of necessary tasks, not all of which are headphone related.
The HPA6 6-Channel Headphone Amplifier provides Main Inputs on the rear panel and Direct In Input
on the front panel to drive any or all of the 6 stereo headphone amplifiers, when using the Direct In
Input, the Main Inputs signal will be interrupted automatically, the Main Outputs on the rear panel can
be used to interlink any number of HPA6s for expanding. The AUX In input on each channel is used
to add an additional input signal to the master signal, with the corresponding Balanced Control to
determine the mix ratio between the two signals.
The Headphone Out outputs on the front panel is connected in parallel to the rear panel output conn-
ectors, and provides an additional option to monitor the individual channels, esp. in the Rack mounting
application.

2. Feature List

Signal Rack Unit
Exceptionally rugged construction ensures long life and durability
Professional , universal headphone amplification system for studio and stage
6 individual stereo high-power amplifiers
Maximum audio quality even at high volume levels
Stereo AUX In per channel for additional signal source
6 independent input mix sections
Output level control per channel
Mono and LEFT/RIGHT MUTE buttons per channel for additional flexibility
3 headphone outputs per channel on front and rear panels
Precise 4-digit LED output level display per channel
Direct In on the front panel for additional stereo signal source
Paralleled main outputs to chain several HPA6 headphone amplifiers
Servo-balanced , gold-plated XLR and 1/4" TRS connectors
Manufactured Under ISO9001 Certified management system

3. Control Elements

INPUT LEVEL(dBu)
INPUT LEVEL(dBu)
OUTPUT LEVEL(dBu)
OUTPUT LEVEL(dBu)
24
24
18
18
12
12
6 6
0
6 6
12
12
18
18
24
24
0
12
12 CLIP
L
MUTE R
3
2
4
MAIN IN
R
LTO
DIRECT IN
DIRECT IN
5
1
MONO
0
6
STEREO
INPUT GAIN
INPUT GAIN
MAIN SECTION
MAIN SECTION
The
LTO HPA6 6-Channel Headphone Amplifier has six separated channels, each channel presents
3 Push-button switches, 2 knob controls , 2 phone jacks and 4 LEDs. The common main section con-
tains 1 knob control,1 jack and 8 LEDs.
3
3
OUTPUT LEVEL(dBu)
OUTPUT LEVEL(dBu)
OUTPUT LEVEL(dBu)
OUTPUT LEVEL(dBu)
2
4
2
4
24
24
0
12
12 CLIP
24
24
0
12 CLIP
12
1
5
L
MUTE R
L
MUTE R
1
5
AUX
0
6
MAIN IN
AUX
0
6
BALANCED
OUTPUT GAIN
OUTPUT GAIN
BALANCED
OUTPUT GAIN
OUTPUT GAIN
AUX IN
AUX IN
HEADPHONE OUT
HEADPHONE OUT
AUX IN
AUX IN
HEADPHONE OUT
HEADPHONE OUT
MONO
MONO
STEREO
STEREO
CHANNEL 1
CHANNEL 1
CHANNEL 2
CHANNEL 2
LTO products by purchasing our HPA6 6-Ch-
3
3
OUTPUT LEVEL(dBu)
OUTPUT LEVEL(dBu)
OUTPUT LEVEL(dBu)
OUTPUT LEVEL(dBu)
2
4
2
4
24
24
0
12 CLIP
12
24
24
0
12 CLIP
12
L
MUTE R
L
MUTE R
1
5
1
5
MAIN IN
AUX
0
6
AUX
0
6
BALANCED
OUTPUT GAIN
OUTPUT GAIN
BALANCED
OUTPUT GAIN
OUTPUT GAIN
AUX IN
AUX IN
HEADPHONE OUT
HEADPHONE OUT
AUX IN
AUX IN
HEADPHONE OUT
HEADPHONE OUT
MONO
MONO
STEREO
STEREO
CHANNEL 3
CHANNEL 3
CHANNEL 4
CHANNEL 4
4
LTO HPA6 6-Channel
3
3
OUTPUT LEVEL(dBu)
OUTPUT LEVEL(dBu)
2
4
2
4
24
24
0
12
12 CLIP
CLIP
L
MUTE R
1
5
1
5
AUX
0
6
AUX
0
6
BALANCED
OUTPUT GAIN
OUTPUT GAIN
BALANCED
OUTPUT GAIN
OUTPUT GAIN
AUX IN
AUX IN
HEADPHONE OUT
HEADPHONE OUT
AUX IN
AUX IN
HEADPHONE OUT
HEADPHONE OUT
MONO
STEREO
CHANNEL 5
CHANNEL 5
CHANNEL 6
CHANNEL 6
HPA6
6-Channel
HEADPHONE
ON
AMPLIFIER
OFF
POWER