Rear Panel
T I P
3
C
AUTION !
C
ONNECT
T
O
M
IDI
I
NTERFACE
O
NLY !
MIDI INTERFACE PORT
I
NPUT
A / B
D
EPTH
B
OOST
V
OLUME
A / B
P
RESENCE
A / B
A INPUT RIGHT B
A INPUT LEFT B
G
AIN
I
NPUT
I
NPUT
A / B
H
IGH
L
OW
M
ONO
S
TEREO
ASSIGNED
TO:
I
NPUT
A / B
V
OLUME
A / B
SEND
R
L
R RETURN L
8 OHM
16 OHM
RIGHT
16 OHM
LEFT
8 OHM
S
PEAKER
OUTPUT
4 OHM
PARALLEL RIGHT
4 OHM
PARALLEL LEFT
SERIAL NUMBER:
WIRED FOR:
REPLACE FUSE ONLY WITH
SAME TYPE AND RATING !
G
ROUND
L
IFT
SWITCH
G
ROUND
F
LOATED
G
ROUND
930/60
F
USED
V
OLTAGE
100-120 V
220-240 V
5 AM
2,5 AM
930/120
F
USED
6,3 AM
3,15 AM
F
OOTSWITCH
DO NOT OPEN !
RISK OF ELECTRIC SHOCK !
DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE !
CAUTION !
!
All-tube Stereo Poweramp
MADE IN GERMANY
Optically refined by: CLARK / Meinerz
M
ASTER
F.X. L
OOP
21
22
23
24
25
26 27
28 29 30
31
32 33 34
35,36
37,38
39,40
41
42
43
44
45
46
48,47
21
AC Socket
connect AC cord here.
ATTENTION: Ensure you use an intact AC
cord with an insulated plug only!
Before you power the amp up, ensure the
voltage value printed beside the AC socket
corresponds to the available current!
22
AC Fuse Box
contains mains fuse (rear chamber) and
spare fuse (front chamber).
NOTE: Ensure replacement fuses bear
identical ratings (refer to the table)!
23
GROUND LIFT SWITCH
GROUND-position: direct connection between
amp´s ground and outlet ground.
GROUND FLOATED-position: no direct
connection between amp´s ground and
outlet ground => use this feature, to avoid
ground loops in combination with other
grounded 19" units.
24
Fan Shaft
ultra-quiet fan ensures your poweramp
remains cool; fresh air is sucked in via
this shaft.
ATTENTION: Install the amp in a 19" rack
in such a manner as to ensure air
circulation is not impeded.
Do not block or cover the fan shaft,
the side and the front coolant vents.
25
MIDI INTERFACE PORT
You can connect the ENGL MIDI INTERFACE
to this jack (Sub D, 25 pins) and then execute
VOLUME A/B (3), PRESENCE A/B (8),
INPUT A/B (11) and DEPTH BOOST (12)
switching via MIDI. You can also save the
switch settings. The MIDI MODE LED (13)
illuminates when the interface is active.
Flashing LEDs denote the amp is operating
in the MIDI mode.
26
FOOTSWITCH: DEPTH BOOST,
INPUT A/B
1/4" stereo jack for connecting a two-way
footswitch for the following functions:
1. DEPTH BOOST-switching Lo/Hi
(Mono contact).
2. Switching between INPUT A and
INPUT B (Stereo contact).
27
FOOTSWITCH: VOLUME A/B,
PRESENCE A/B
1/4" stereo jack for connecting a two-way
footswitch for the following functions:
1. Switching between VOLUME A and
VOLUME B (Mono contact).
2. Switching between PRESENCE A and
PRESENCE B (Stereo contact).
28
INPUT RIGHT A
Signal input A to right power amp channel.
29
INPUT RIGHT B
Signal input B to right power amp channel.
30
GAIN Hi/Lo
power amps’ input sensitivity
31
INPUT MONO/STEREO
In the MONO position, the left and right inputs
are bridged and the two poweramp sides
receive the same signal.
32
INPUT A/B ASSIGNED TO
Use this button to assign the
INPUT A/B switching function to:
1.INPUT A/B position (button depressed):
Input A or B is activated via the
INPUT A/B (11) button.
2.VOLUME A/B position(button not depressed):
Input A or B is activated via the
VOLUME A/B (3) button; in this case
the INPUT A/B button (11) is deactivated.
VOLUME A: Input A activ,
VOLUME B: Input B activ.
33
INPUT LEFT A
Signal input A to left power amp channel.
34
INPUT LEFT B
Signal input B to left power amp channel.
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T I P
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T I P
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