SPL Frontliner Modular Recording Channel - Manual (Page 24)

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. 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 uninflu-
enced 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 is fitted. It indicates that the converter
is overloaded. For further information on the converter please refer to its manual.
The AD OVL-LED never illuminates if the unit is not equipped with the optional converter.
If the optional converter is fitted, 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.
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 flashes. The MAIN OUTPUTS and the output for
the optional converter card are muted, all EXTERNAL INPUTS keys are deactivated. The MUTE
switch stops flashing when the warm-up mode is finished. 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 %
MIC GAIN
S-R
EDUCTION
IN
STR
UMEN
T
S- DETECT
AD -OVL
13
1 4
1 5 1 6 1 8 20 2 2 24 26 28 30 33
3 6 3
9 4
2 4
5 5
2 6
1 68
INS
TR. GAIN LINE GAIN RATIO
ATTACK
LMF
MHF
LMF – / +
MHF – / + AIR BAND
TU
BE
SATURATIO
N
INSTR.
LINE IN TUBE
+15 dB
ON ON
MUTE
EQ PRE
COMP.
EQ/TUBE COMP.
EXTERNAL INPUTS
DE-ES. AUTO 48 V PAD
R e c o r d i n g C h a n n e l
Ø
MAKE-UP
RELEASE
OUTPUT
Sound Performance Lab Made in Germany
ON
0
-1
-2
-3 -4
-6
-
9
-1 1
-1 2 21
16
11
6
0
-5
-9 - 16 -22 -30
-38
-4
6
-
54
-58 1.2
1 .4
1
.7
2
.0
2.3 2.7 3.0
3
.6
5.0
1
6
∞
0
1 0
2 0
3
0
4 0 50 60
7
0
80
9
0
10
0 -20
- 13
- 7. 5
-4 .5
- 2
0 1.5
3
4
5
5. 5
0.1
0.2
0
.4
1.0
2.5 7.0 16
4
0
1
30
5 30 1
000 0.03
0 .05
0. 09
0 .15
0. 25 0.4 0.65
1
.0
1.3
1
.8
2
.0
0
0 .5
1
2
3
4
5 6 7 8
9
10
1 2 1
4
16
1 9
2
0 -12
- 10
- 5
-2 .5
0 2.5
5
7.5
10
12
-12
- 10
- 5
-2 .5
0 2.5
5
7.5
10
12 -10
-8
-6
- 4
-2
0 2
4
6
8
10 680
8 20
1 k 0
1 k 5
2 k 7 3 k 4 4 k 5
6 k 5
1
0 k
13 k
15 k
30
4 0
5
0
80
125
160 200
3
00
5 00
64 0
70 0
Model 2800
GR VU VU PPM 0 dB -10 dB
THR
ESHOLD
Frontliner
6
8 1
1 1 4 1 7 1 9 2 1 23 25 26 27 29 3
2 3
5 3
7 3
9 4
1 4
2
4
3
-20
-1 8
- 12
-9
0
3
9
10
dB 1:x dB dB
dB dB Hz
Hz %
ms s
dB dB
dB
OUTPUT
-20
-
13
-
7.
5
-4
.5
-
2
0
1.5
3
4
5
5.5
AD
-OVL
MUTE