REAR PANEL
43 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.
44 AC FUSE BOX
Contains mains fuse (rear chamber) and spare fuse (front chamber)
NOTE:
Ensure replacement fuses bear identical ratings (refer to the table)!
45 MIDI INTERFACE PORT
You can connect the ENGL MIDI Interface to this jack (Sub D, 25 pins) and then execute channel selection
functions (13), (34), (39), Rough/Smooth mode (31) selection, Presence A/B (18) switching, Master A/B
(37) switching, speaker A/B (21) switching, Reverb Active (22) and Triode/Pentode mode (40) via MIDI.
You can also save the switch settings in up to 99 memory locations (MIDI presets) of the MIDI inteface.
The MIDI Mode LED (15) illuminates when the interface is active. Flashing LEDs denote the amp is
operating in the MIDI mode. A very detailed operating manual is included with the MIDI Interface.
46 FOOTSWITCH: CHANNEL; CLEAN/CRUNCH 1
1/4" stereo jack for connecting a dual footswitch; it executes the following functions:
1. Main channel selection, Main Channel 1/Main Channel 2 (mono terminal).
2. Channel selection: Clean/Crunch 1 (stereo terminal).
Tip:
All switching functions that can be switched via footswitch can also be executed via a Looper/
switcher or other MIDI device that features 8 freely-programmable switching inputs. Depending on the
type of MIDI device, you may have to split the Footswitch stereo jacks into eight mono jacks. Each
switching function requires a mono or stereo contact (see 46, 47, 48 and 49 for pin assignments) and
the ground! NOTE
:
If the switching and signal grounds are identical in the MIDI device, then you may
encounter a gound loop, especially if the amp and device (e.g. FX processor) exchange signals!
47 FOOTSWITCH: CRUNCH 2/LEAD; ROUGH/SMOOTH
1/4" stereo jack for connecting a double footswitch executes the following functions:
1. Channel selection: Crunch 2/Lead (mono terminal).
2. Sound mode switching Rough/Smooth (stereo terminal).
Tip:
(see point 46, Tip!)
48 FOOTSWITCH: MASTER A/B, PRESENCE A/B
1/4" stereo jack for connecting a dual footswitch; it executes the following functions:
1. Switching between Master A/B control (mono terminal).
2. Switching between Presence A/B control (stereo terminal).
Tip:
(see point 46, Tip!)
49 FOOTSWITCH: REVERB; OUTPUT A/OUTPUT B (= SPEAKER A/B)
1/4" stereo jack for connecting a dual footswitch; it executes the following functions:
1. Reverb on/off (mono terminal).
2. Switching between the two speaker/poweramp Outputs A and B (stereo terminal).
Tip:
(see point 46, Tip!)
50 FX LOOP STATUS
This switch assigns the two FX loops to the two Main Channels. Off position: Master Loop (common FX
loop), activates the FX Loop Channel 1 (common signal processor for all channels); On position (pushed
in): Channel 1/Channel 2 selection (separate FX loops), FX Loop Channel 1 is active for Main Channel 1,
FX Loop Channel 2 is assigned to Main Channel 2 (different signal processors for the two main channels).
Tip:
For example, you can use this feature to insert a chorus to Main Channel 1 and a delay with a noise
gate to Main Channel 2; different effect levels can be adjusted via the separate Balance controls. When
you insert a multi-FX processor, activate the Master FX Loop and assign the effects of your choice to the
respective channels and sound modes of the amplifier. Effects assignment has to be programmed at the
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