User Manual
24
Frontliner
OUTPUT
The outgoing signal can either be dampened to -20 dB or further amplified by +5.5 dB with
the OUTPUT control to provide optimal drive to the subsequent units or the optional A/D
converter 2376. The individually selected output level is shown in the PPM display mode of
the VU meter. Before a recording commences the OUTPUT control should be set to 0 dB – the
uninfluenced values from the OUTPUT control are then legible and available for adjustment of
the preamplifier levels (also refer to “MIC GAIN adjustments” on page 15).
AD OVL-LED
This LED is activated only if the optional A/D converter 2376 is fitted. It indicates that the
converter 2376 is overloaded. For information on the converter 2376 please read page 27,
“24/96 AD converter, model 2376“.
The AD OVL-LED never illuminates if the unit is not equipped with the optional converter.
If the optional converter is tted, the AD OVL should not illuminate. Otherwise reduce the
output level until it does not illuminate anymore.
If you are using external A/D converters you must use their level meters to control the input
levels.
MUTE
The MUTE switch mutes the output signal at both MAIN OUTPUTS and at the output to the
optional converter 2376.
An instance could be allowing the musician to practice for a while and then, when ready,
freeing the signal path and commencing recording by deactivating the MUTE switch.
Since only the output signal is muted, you can still adjust gain settings etc. (with the VU
meter).
During the warm-up phase the MUTE switch ashes. The MAIN OUTPUTS and the output for
the optional converter card are muted, all EXTERNAL INPUTS keys are deactivated. The MUTE
switch stops ashing when the warm-up mode is nished. The MUTE switch will not illumi-
nate if it was not activated before switching in the unit and it will illuminate permanently after
warm-up when it was activated before.
Output, AD OVL, Mute
Control Elements
7
5
3
1
0
3
5
30
50
70
100
VU
5
3
1
VU
20
10
0
%
M
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G
A
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N
S
-
R
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D
U
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T
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-
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1
3
1
4
1
5
1
6
1
8
2
0
2
2
2
4
2
6
2
8
3
0
3
3
3
6
3
9
4
2
4
5
5
2
6
1
6
8
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B
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S
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INST R.
LINE IN
TUBE
+15 dB
ON ON
MUTE
EQ PRE
C OM P.
EQ/ TUB EC OM P.
EXTERNAL INPUTS
DE-ES.
AUTO
48 V PAD
Recording Channel
Ø
M
A
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-
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P
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E
A
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T
P
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T
Sound Performance Lab Made in Germany
ON
0
-
1
-
2
-
3
-
4
-
6
-
9
-
1
1
-
1
2
2
1
1
6
1
1
6
0
-
5
-
9
-
1
6
-
2
2
-
3
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3
8
-
4
6
-
5
4
-
5
8
1
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2
1
.
4
1
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7
2
.
0
2
.
3
2
.
7
3
.
0
3
.
6
5
.
0
1
6
∞
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
1
0
0
-
2
0
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1
3
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7
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5
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5
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1
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5
0
2
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5
5
7
.
5
1
0
1
2
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1
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8
-
6
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4
-
2
0
2
4
6
8
1
0
6
8
0
8
2
0
1
k
0
1
k
5
2
k
7
3
k
4
4
k
5
6
k
5
1
0
k
1
3
k
1
5
k
3
0
4
0
5
0
8
0
1
2
5
1
6
0
2
0
0
3
0
0
5
0
0
6
4
0
7
0
0
Model 2800
GRVU VU PPM 0 dB -10 dB
T
H
R
E
S
H
O
L
D
Frontliner
6
8
1
1
1
4
1
7
1
9
2
1
2
3
2
5
2
6
2
7
2
9
3
2
3
5
3
7
3
9
4
1
4
2
4
3
-
2
0
-
1
8
-
1
2
-
9
0
3
9
1
0
dB 1:x dB dB
dB dBHz
Hz %
ms s
dB dB
dB
O
U
T
P
U
T
-
2
0
-
1
3
-
7
.
5
-
4
.
5
-
2
0
1
.
5
3
4
5
5
.
5
A
D
-
O
V
L
MUTE