User Manual

Rear Panel
15
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 above the AC socket
corresponds to the available current!
16
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
FOOTSWITCH:
VOLUME A/B; PRESENCE A/B
1/4" stereo jack for connecting a dual
footswitch (e.g. ENGL Z-4) or a
MIDI-switching system (e.g. ENGL Z-11).
The following functions can be executed:
1. VOLUME A/B (mono terminal).
2. PRESENCE A/B (stereo terminal).
INPUT RIGHT
Signal input right stereo channel. Connect
this input to a preamp´s or a FX processor’s
right output/send jack via a shielded cable
with 1/4" plugs.
The Input sensitivity can be adjusted via the
Gain pushbutton at the frontpanel.
24
INPUT LEFT
Signal input left stereo channel. Connect this
input to a preamp´s or a FX processor’s left
output/send jack via a shielded cable with
1/4" plugs.
The Input sensitivity can be adjusted via the
Gain pushbutton at the frontpanel.
25
T I P 4
17
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.
PLEASE NOTE: If operating the Poweramp
with a preamp or FX device, that does not
have a direct connetion between internal
ground and outlet ground, ensure this
switch is set to the position "Ground".
Otherwise you may encounter a hum noise.
SPEAKER OUTPUT 8 OHMS LEFT
8Z left channel speaker output jack; connect
8Z speaker cabinet here.
IMPORTANT: If you choose to use just
one power amp channel, ensure you switch
the other channel's STANDBY switch off.
Never operate an active stereo channel
without a connected speaker, you may
destroy the power amp!
21
22
Fan Shaft
ultra-quiet fan ensures your poweramp
remains cool; hot air escapes 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.
T I P 3
16 OHM 16 OHM
SERIAL NUMBER:
WIRED FOR:
GROUND LIFT
SWITCH
GROUND
FLOATED
GROUND
DO NOT OPEN !
RISK OF ELECTRIC SHOCK !
DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE !
CAUTION !
!
8 OHM8 OHM
RIGHT LEFT
S PEAKER O UTPUT
F OOTSWITCH
I NPUT
R IGHT L EFT
VOLUME
A / B
S TEREO T UBE P OWERAMP
T YPE E840/50
Designed by: Horst Langer
Optically refined by: CLARK / Meinerz
MADE IN GERMANY
REPLACE FUSE
ONLY WITH SAME
TYPE AND RATING !
FUSED
VOLTAGE
100-120 V
220-240 V
3,15 AM
1,6 AM
PRESENCE
A / B
230 VOLT
099840
15 16
17
18 19 20 21 22 23 24 25
SPEAKER OUTPUT 16 OHMS RIGHT
16Z right channel speaker output jack;
connect 16Z speaker cabinet here.
18
SPEAKER OUTPUT 8 OHMS RIGHT
8Z right channel speaker output jack;
connect 8Z speaker cabinet here.
19
SPEAKER OUTPUT 16 OHMS LEFT
16Z left channel speaker output jack;
connect 16Z speaker cabinet here
20