User Manual
1. Use a dual footswitch such as the ENGL Z-4, connecting it to the amp via a stereo cord equipped
with ¼" jack plugs. You can switch channels and Gain Boost via the dual footswitch connected
to port 17, M.V.B. and Reverb Off/On via the dual footswitch connected to port 16.
2. Use a MIDI switcher such as the ENGL Z-11, connecting it to the amp via three stereo cords
equipped with ¼" jack plugs. The buttons on the switcher can serve to control Clean/Lead, Gain
Boost, M.V.B. and Reverb. You can also program all kinds of switching setups to the various MIDI
program locations. Here's just one example: You could configure MIDI Preset #1 so that the Clean
channel and Reverb are on, while Gain Boost and M.V.B., are off. Then you could set MIDI Preset #2
up so that Lead channel, Gain Boost, and M.V.B. are on, while Reverb is off.
Whatever setups you decide to program, you can easily activate the desired configuration directly
via a MIDI board such as the ENGL Z-9, Z-12, or Z-15.
This type of control option is extremely versatile; we recommend it highly if you intend to use
the amp in conjunction with any MIDI system, including MIDI effects devices.
Speaker / cabinet options: * Another option would be to connect two 16-ohm cabinets in parallel
instead of one 8-ohm cabinet.
or
1. 2.
Speaker / cabinet options:
Wiring of Principal Connectors: Footswitch (16, 17), Balanced Line Output (22)
and Headphones (21)
Your options for controlling the ENGL Ironball amp remotely:
Technical specifications are subject to change without notice.
ENGL Gerätebau GmbH
Internet: www.engl-amps.com
Text, design, graphics and layout by
Horst Langer, ENGL Amp Designer
or
or
*
Stereo
1/4" jack
tip: refer to *3
ring: refer to *2
sleeve: Ground (Shield)
Use a stereo
plug only!
Stereo
1/4" plug
ring *2
tip *3
sleeve
Footswitch jack (17):
*2: A switch connected to this terminal controls
Gain Boost: off <--> on;
*3: A switch connected to this terminal controls
Channel switching - Clean <--> Lead;
Footswitch jack (16):
*2: A switch connected to this terminal controls
Reverb: off <--> on;
*3: A switch connected to this terminal controls
M.V.B. off <--> on (low / high level);
Balanced Line Out jack (22):
*2: the ring carries an
- inverted ("cold") signal;
*3: the tip carries
+ the ("hot") signal with normal polarity;
Headphones Output jack (21):
*2: the ring carries
output signal headphone amp 1
*3: the tip carries
output signal headphone amp 2
ON/OFF ON/OFF
Tube A
m
plifier
WRITE
MIDI
CHANNEL
SWITCH
LOOP 1
SWITCH
LOOP 2
SWITCH
LOOP 3
SWITCH
LOOP 4
SWITCH
LOOP 5
SWITCH
LOOP 6
MIDI SWITCHER
8
16
8 8
Footswitch
Clean
/
Lead
Gain Boost
Balanced
Line Output
FX L
oop
Poweramp Output
M.V.B.
Reverb
Head-
phones
Reverb
Level
Send Return 8 - 32 Ohms Freq. Comp. 8 Ohms 16 Ohms serial
AB