11
M/S Master
Rear Panel
Operation
Switches
Overview
Voltage Selector
The rear panel VOLTAGE selector sets the local line voltage (115 V position: 110-120 volts/6o Hz,
230 V position: 220-240 volts/50 Hz). The diagram shows the correct switch position for 230 V
power supply.
BEFORE you connect electrical power make sure that the VOLTAGE selector setting reflects
the correct local power line voltage.
Power switch
Use the POWER switch on the rear panel to turn the unit on or off. The VU-meters on the front
panel will light on as soon as you turn the unit on, regardless of the position of the ACTIVE
push button. Thus, they fulfill a second function as power indicators.
GND Lift
The rear panel GND LIFT switch eliminates hum by separating the internal ground from the
unit’s housing ground. Hum can, for example, result when this unit’s housing has a common
ground connection with other devices that might have a different ground potential. The switch
is usually deactivated to retain the shielding of the housing.
Overview
The control elements on the front panel of the M/S Master are divided into three sections:
MID, SIDE and OUTPUT/VU-meters.
1. In the MID section you adjust the balance of Mid signals in the stereo panorama and their
level.
2. In the SIDE section you define the stereo width and apply filters as well as other func-
tions to the signal.
3. In the OUTPUT/VU section you adjust the output level, monitor the VU-meters and switch
on, with the ACTIVE push button, the M/S Master, as well as engage the insert paths
ACTIVE
Use the ACTIVE push button to switch on or off the totality of the electronic components of the
M/S Master. When switched off, input signals are forwarded directly to the outputs.
The ACTIVE push button accomplishes two very important tasks:
1. A/B comparison between processed and unprocessed audio material.
2. Switching between M/S and A/B stereo processing, including external processing
without the need of any recabling.
Refer to the information on „Input and Output Electronics“ and „MID INSERT, SIDE INSERT“
on page 9.
0
I
230V ~50Hz
315
m
A
slow
115V ~60Hz
630
m
A
slow
VOLTAGE | FUSE
GND LIFT
GND LIFT
GND
SI
DE
PPM
M/S
VU
-10
d
B
BALANCE
Made in Germany
-10
-
9
-8
-7
-
6
-
5
-
4
-3
-
2 -
1 0 1 2
3
4
5
6
7
8
9 1
0
-10
-
9
-8
-7
-
6
-
5
-
4
-3
-
2 -
1 0 1 2
3
4
5
6
7
8
9
10
Model
1020
M/S Master
LEVEL
–/+
STE
REO WIDTH
OUTPUT
LE
FT
-16
-
15
-
14
-1
3
-1
0
-8 -5
-2
0
2
3
4
dB
INSERT MUTE
ACTIVE
Mid
Side
M
ID
RI
GH
T
INSERT
FLOAT
OFF
LOW
RANGE
FILTER
OFF
MUTE
0
0
.2
0
.4
0.6 0.8
1
1
.5
2
0
0.1
0
.2
0
.3
0
.4
0.5 0.6
0
.7
0.8
0
.9
1
FILTER
ACTIVE
Summary of Contents for M/S Master 1020
Page 22: ...Manual M S Master Model 1020...
