Alto VOICE plus, Руководство пользователя

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5
This switch determines the type of input signal, up for MIC input; down for LINE input.
3. LINE Switch
Engage this button will provide the st48V DC power for most condenser microphones.
Note: Plug in the microphone well before turning phantom power on.
2. PHANTOM Switch
Through this control you can adjust the input level. When the LINE switch is engaged, the input signal can
be varied from -12dB to +12dB, otherwise, the input signal can be varied from 10dB to 60dB.
4. GAIN Control
The 4 segments LED will read the actual input level. The CLIP LED will light up when clipping distortion
occurs in the circuit.
5. INPUT LEVEL Meter
This control is used to select the frequency for low cut filter from 15Hz to 360Hz, based on which, the fre-
quency below selected frequency will be cut off.
6. FREQUENCY Control
This button will reverse the phase of the corresponding frequency output by 180 , so that, the frequencies
cancellation in some fields can be compensated for.
7. PHASE Switch
Engage this button to add a low cut filter in the signal path with a 18dB/Octave. You can use this function
to reduce hum and stage rumble when using microphones.
8. LOW CUT Switch
9 10
11
12 13
14
15
16
17 18 19 20
21
3.1.2 EXPANDER/GATE & COMPRESSOR Section
Releasing this switch is equal to turning off the Expander/Gate & Compressor function. It can also used to
make an A/B comparison in between processed and unprocessed signal.
9. BYPASS/ACTIVE Switch
Through this control, you can set the threshold level of the expander/gate from OFF to +15dBu. Signals
below this level cause expansion
10. THRESHOLD Control
-. EXPANDER/GATE
The "+" LED lights up when an audio signal is below the set threshold. The "-" LED lights up in presence
of an expansion.
11. THRESHOLD LED
GAIN REDUCTION(dB)
30 27 21 18 15 9 4 2
OUTPUT LEVEL(dB)
12 0 12 6 18 24 6 18
60
dBu
THRESHOLD
0
35
15 OFF
1:N
RATIO
8
7
2.5
1.5
1.2
dBu
THRESHOLD
30
20 40
10
10
COMPRESSOR
dB/mSec
ATTACK
6
110
70
30
15
1 150
dB/Sec
RELEASE
0.05 5
0.3
0.1
3
1.5
0.5
dB
OUTPUT GAIN
10
10
20 20
0
N:1
RATIO
2
4
1
10
EXPANDER / GATE
SMART BYPASS
ACTIVE