Engl E412 Manuel
Tube
Amp
Technology
Technical Information
Guitar Speaker Cabinet
E412
8
8
8
8
R
R
L
L
E412
cabinet:
wiring
diagram
INPUT
LEFT
jack
THRU
RIGHT
jack
MONO
STEREO
switch
8
8
8
8
L
L
R
R
8: 8 ohms speaker impedance
R: speaker right side
right stereo channel
L: speaker left side
left stereo channel
overall impedance Mono mode:
8 ohms
overall impedance Stereo mode:
2 x 16 ohms
Important note:
ensure that the Mono / Stereo switch
is set to "Stereo" before you connect
the cabinet to 2 poweramp outputs!
switch setting:
E412 cabinet:
Front layout
E412 speaker cabinet:
rear connection panel
SPEAKER CABINET
STEREO
MONO
RIGHT
THRU
LEFT
INPUT
R
1. basic technical information to all ENGL 412 speaker cabinets
THRU / RIGHT INPUT jack
in Mono mode:
you can use this jack as thru connector
to route the signal to an additional cabinet,
refer to example #3;
in Stereo mode:
use this jack as input connector
for the right speaker side (R;)
INPUT / LEFT jack
in Mono mode:
use this jack as input connector;
in Stereo mode:
use this jack as input connector
for the left speaker side (L);
MONO / STEREO switch
select Mono or Stereo mode;
Mono mode:
4 speakers overall impedance 8 ohms;
Stereo mode:
2 speakers each stereo channel,
16 ohms impedance per channel;
STEREO
MONO
STEREO
MONO
Mono
mode Stereo
mode
The following pages depicts a few
samples for diverse setups between
amplifiers an speaker 412 cabinets.
8
8
8
8
L
L
R
R
8
8
8
8
L
L
R
R
8
8
8
8
L
L
R
R
LoLead
Bottom
ChII Gain
ChI Gain
HiLead
Bottom
Bright Bottom
Bass
Bass
Mid-open
Middle
Mid-focused
Treble-Clean
Treble
Treble-Crunch
LoLead Vol.
CleanVolume CrunchVolume
HiLead Vol.
open/
focused ChI /II Gain
Lo/Hi
MasterA
Presence
MasterB
DepthPunch
PowerTube Monitor
V1 V2 V3 V4
Input
Power
Stand By
Powerball
Amp
Tube
R
6L6GC
powered
LoLead
Bottom
ChII Gain
ChI Gain
HiLead
Bottom
Bright Bottom
Bass
Bass
Mid-open
Middle
Mid-focused
Treble-Clean
Treble
Treble-Crunch
LoLead Vol.
CleanVolume CrunchVolume
HiLead Vol.
open/
focused ChI /II Gain
Lo/Hi
MasterA
Presence
MasterB
DepthPunch
PowerTube Monitor
V1 V2 V3 V4
Input
Power
Stand By
Powerball
Amp
Tube
R
6L6GC
powered
2. one100 watts amp head combined with one ENGL 412 speaker cabinet
SPEAKER CABINET
RIGHT
THRU
LEFT
INPUT
R
Amp head: Poweramp Output
8 Ohms Parallel
1 x 8 Ohms
2 x 16 Ohms
4 Ohms Parallel
1 x 4 Ohms
2 x 8 Ohms
16 Ohms
48Or 8And Or-> 816Or 16And 16
3. one 100 watts head combined with two ENGL 412 speaker cabinets
STEREO
MONO
set to
Mono
412 cabinet:
rear connection panel
SPEAKER CABINET
RIGHT
THRU
LEFT
INPUT
R
Amp head: Poweramp Output
8 Ohms Parallel
1 x 8 Ohms
2 x 16 Ohms
4 Ohms Parallel
1 x 4 Ohms
2 x 8 Ohms
16 Ohms
48Or 8And Or-> 816Or 16And 16
STEREO
MONO
set to
Mono
412 cabinet #1:
rear connection panel
SPEAKER CABINET
RIGHT
THRU
LEFT
INPUT
R
STEREO
MONO
set to
Mono
412 cabinet #2:
rear connection panel
option 1
option 2
option 1 & 2
speaker impedance: 8 ohms
output impedance: 8 ohms
speaker
impedance:
cabinet #1
8 ohms;
cabinet #2
8 ohms;
connected
in parallel:
4 ohms;
output
impedance:
4 ohms;
use either
option 1:
cabinet #2
connected
to the
4 ohms
Poweramp
Output
or
option 2:
cabinet #2
connected
to THRU
jack of
cabinet #1
8 Ohms Parallel
1 x 8 Ohms or 2 x 16 Ohms
16 Ohms4 Ohms Parallel
1 x 4 Ohms or 2 x 8 Ohms
8
8
8
8
L
L
R
R
LoLead
Bottom
ChII Gain
ChI Gain
HiLead
Bottom
Bright Bottom
Bass
Bass
Mid-open
Middle
Mid-focused
Treble-Clean
Treble
Treble-Crunch
LoLead Vol.
CleanVolume CrunchVolume
HiLead Vol.
open/
focused ChI /II Gain
Lo/Hi
MasterA
Presence
MasterB
DepthPunch
PowerTube Monitor
V1 V2 V3 V4
Input
Power
Stand By
Powerball
Amp
Tube
R
6L6GC
powered
LoLead
Bottom
ChII Gain
ChI Gain
HiLead
Bottom
Bright Bottom
Bass
Bass
Mid-open
Middle
Mid-focused
Treble-Clean
Treble
Treble-Crunch
LoLead Vol.
CleanVolume CrunchVolume
HiLead Vol.
open/
focused ChI /II Gain
Lo/Hi
MasterA
Presence
MasterB
DepthPunch
PowerTube Monitor
V1 V2 V3 V4
Input
Power
Stand By
Powerball
Amp
Tube
R
6L6GC
powered
8
int.
Gain2 Middle Treble Volume2
Input
Bass
Hi
Gain
Gain1 Middle Treble Volume1 DepthPunchBass Presence
Bright
MasterBMasterA
Power
Stand By
RAIDER 100
Master
A/B FX
Loop
Reverb
Reverb
Mid
Boost
off/ on
CH1
PowerTubeMonitor
V1 V2 V3 V4
Clean
Bright
CH1
CH2
Amp
Tube
8
8
8
8
L
L
R
R
internal
speaker
4. two 100 watts amp heads or a Stereo Poweramp (e.g. E850) combined with
one ENGL 412 speaker cabinet set to stereo mode
SPEAKER CABINET
RIGHT
THRU
LEFT
INPUT
R
Amp head #1: Poweramp Output
Stereo Poweramp: Left channel
8 Ohms Parallel
1 x 8 Ohms
2 x 16 Ohms
4 Ohms Parallel
1 x 4 Ohms
2 x 8 Ohms
16 Ohms
48Or 8And Or-> 816Or 16And 16
STEREO
MONO
set to
Stereo
412 cabinet:
rear connection panel
Amp head #2: Poweramp Output
Stereo Poweramp: Right channel
8 Ohms Parallel
1 x 8 Ohms
2 x 16 Ohms
4 Ohms Parallel
1 x 4 Ohms
2 x 8 Ohms
16 Ohms
48Or 8And Or-> 816Or 16And 16
5. a 100 watts combo amp combined with one ENGL 412 speaker cabinet
SPEAKER CABINET
RIGHT
THRU
LEFT
INPUT
R
STEREO
MONO
set to
Mono
412 cabinet:
rear connection panel
internal speaker
impedance:
8 ohms
cabinet speaker
impedance:
8 ohms
connected in parallel
results 4 ohms
output impedance:
4 ohms
Combo Amp: Poweramp Output
speaker impedance:
16 ohms Left side
16 ohms Right side
output impedance:
16 ohms
at each poweramp
or stereo channel
Gain
Bright Ultra
Gain
Input
Depth
Bass Middle Treble Presence Master A Master B
Power
Stand By
Fireball
PowerTube
Monitor
V1 V2
Amp
Tube
Gain
Bright Ultra
Gain
Input
Depth
Bass Middle Treble Presence Master A Master B
Power
Stand By
Fireball
PowerTube
Monitor
V1 V2
Amp
Tube
8
8
8
8
L
L
R
R
8
8
8
8
L
L
R
R
8
8
8
8
L
L
R
R
6. one 50 watts amp head combined with one ENGL 412 speaker cabinet
SPEAKER CABINET
RIGHT
THRU
LEFT
INPUT
R
7. one 50 watts head combined with two ENGL 412 speaker cabinets
STEREO
MONO
set to
Mono
412 cabinet:
rear connection panel
SPEAKER CABINET
RIGHT
THRU
LEFT
INPUT
R
Amp head: Poweramp Output
STEREO
MONO
set to
Mono
412 cabinet #1:
rear connection panel
SPEAKER CABINET
RIGHT
THRU
LEFT
INPUT
R
STEREO
MONO
set to
Mono
412 cabinet #2:
rear connection panel
speaker impedance: 8 ohms
output impedance: 8 ohms
speaker
impedance:
cabinet #1
8 ohms
cabinet #2
8 ohms
connected
in serial:
16 ohms
output
impedance:
16 ohms
816Or 16And Or-> 16 8Or 8And
16 O
hms
S
erial
1 x 16 O
hms
(U
se
L
eft
J
ack
!)
2 x 8 O
hms
8 O
hms
Parallel
1 x 8
O
hms
2 x 16 O
hms
816Or 16And Or-> 16 8Or 8And
16 O
hms
S
erial
1 x 16 O
hms
(U
se
L
eft
J
ack
!)
2 x 8 O
hms
8 O
hms
Parallel
1 x 8
O
hms
2 x 16 O
hms
Amp head: Poweramp Output
Gain
Bright Ultra
Gain
Input
Depth
Bass Middle Treble Presence Master A Master B
Power
Stand By
Fireball
PowerTube
Monitor
V1 V2
Amp
Tube
Gain
Bright Ultra
Gain
Input
Depth
Bass Middle Treble Presence Master A Master B
Power
Stand By
Fireball
PowerTube
Monitor
V1 V2
Amp
Tube
8
8
8
8
L
L
R
R
8
8
8
8
L
L
R
R
internal
speaker
8
int.
Clean
Lead
Reverb Lead
Volume MasterClean Lead Bass Middle Treble
PowerStand By
Bright
Screamer 50
Gain
Lo/Hi
Amp
Tube
Input Lead
Presence
8. two 50 watts amp heads or a Stereo Poweramp (e.g. E840) combined with
one ENGL 412 speaker cabinet set to stereo mode
SPEAKER CABINET
RIGHT
THRU
LEFT
INPUT
R
STEREO
MONO
set to
Stereo
412 cabinet:
rear connection panel
9. a 50 watts combo amp combined with one ENGL 412 speaker cabinet
SPEAKER CABINET
RIGHT
THRU
LEFT
INPUT
R
STEREO
MONO
set to
Mono
412 cabinet:
rear connection panel
internal speaker
impedance:
8 ohms
cabinet speaker
impedance:
8 ohms
connected in serial
results 16 ohms
output impedance:
16 ohms
816Or 16And Or-> 16 8Or 8And
16 O
hms
S
erial
1 x 16 O
hms
(U
se
L
eft
J
ack
!)
2 x 8 O
hms
8 O
hms
Parallel
1 x 8
O
hms
2 x 16 O
hms
816Or 16And Or-> 16 8Or 8And
16 O
hms
S
erial
1 x 16 O
hms
(U
se
L
eft
J
ack
!)
2 x 8 O
hms
8 O
hms
Parallel
1 x 8
O
hms
2 x 16 O
hms
Amp head #1: Poweramp Output
Stereo Poweramp: Left channel
Amp head #2: Poweramp Output
Stereo Poweramp: Right channel
speaker impedance:
16 ohms Left side
16 ohms Right side
output impedance:
16 ohms
at each poweramp
or stereo channel
816Or 16And Or-> 16 8Or 8And
16 O
hms
S
erial
1 x 16 O
hms
(U
se
L
eft
J
ack
!)
2 x 8 O
hms
8 O
hms
Parallel
1 x 8
O
hms
2 x 16 O
hms
COMBO: INTERNAL SPEAKER
Combo Amp: Poweramp Output
Tube
Amp
Technology
Tube
Amp
Technology
We reserve the right to make unannounced technical upgrades!
ENGL Gerätebau GmbH
Internet: www.engl-amps.com
Text, design, grafics and layout by
Horst Langer, ENGL Amp Desinger
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