Tube Amp Technology
Guitar Speaker Cabinet E412 Technical Information
1. basic technical information to all ENGL 412 speaker cabinets
R
SPEAKER CABINET
8 L
8 R
THRU
MONO
INPUT
RIGHT
STEREO
LEFT
E412 speaker cabinet: rear connection panel
8 L
8 R
THRU RIGHT jack
MONO STEREO switch
INPUT LEFT jack
E412 cabinet: Front layout 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; The following pages depicts a few samples for diverse setups between amplifiers an speaker 412 cabinets.
8 R
E412 cabinet: wiring diagram
8 R
8 L
8 L
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: Mono mode
Stereo mode
MONO
MONO
STEREO
STEREO
2. one100 watts amp head combined with one ENGL 412 speaker cabinet R
412 cabinet: rear connection panel
SPEAKER CABINET Ch I Gain Bright
Tube
Bass
Middle
Treble-Clean
Treble-Crunch
Clean Volume
Crunch Volume
Bass
Mid-open
Mid-focused
Treble
Lo Lead Vol.
Hi Lead Vol.
Presence
Depth Punch
Master A
Master B
set to Mono
Powerball
Bottom V1
V2
V3
V4 R
Power Tube Monitor
Amp
Input
Ch II Gain
open/ focused Ch I /II
Lo Lead Hi Lead Bottom Bottom
6L6GC powered
Gain Lo /Hi
Stand By Power
8 L
8 R
THRU
MONO
INPUT
RIGHT
STEREO
LEFT
speaker impedance: 8 ohms output impedance: 8 ohms
8 L
8 R 4
Or
8
And 8
Or->
8
Or 16
And 16
4 Ohms Parallel
8 Ohms Parallel
1 x 4 Ohms 2 x 8 Ohms
1 x 8 Ohms 2 x 16 Ohms
16
16 Ohms
Amp head: Poweramp Output
3. one 100 watts head combined with two ENGL 412 speaker cabinets
Ch I Gain
Bass Bright
Tube
Middle
Treble-Clean
Treble-Crunch
Clean Volume
Crunch Volume
Presence
Depth Punch
Powerball
Bottom V1
V2
V3
V4 R
Power Tube Monitor
Amp
Input
Ch II Gain
Bass
Mid-open
Mid-focused
Treble
Lo Lead Vol.
Hi Lead Vol.
Master A open/ focused Ch I /II
Lo Lead Hi Lead Bottom Bottom
Master B
6L6GC powered
Gain Lo /Hi
Stand By Power
8 L
8 R
speaker impedance: cabinet #1 8 ohms; cabinet #2 8 ohms; connected in parallel: 4 ohms; output impedance: 4 ohms;
R
412 cabinet #1: rear connection panel
SPEAKER CABINET
set to Mono THRU
MONO
INPUT
RIGHT
STEREO
LEFT
option 2 option 1 & 2
8 L
8 L
8 L
8 R
8 R
option 1
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
4
Or
8
And 8
Or->
8
Or 16
And 16
4 Ohms Parallel
8 Ohms Parallel
1 x 4 Ohms 2 x 8 Ohms
1 x 8 Ohms 2 x 16 Ohms
16
16 Ohms
Amp head: Poweramp Output R
SPEAKER CABINET
412 cabinet #2: rear connection panel set to Mono
THRU
MONO
INPUT
RIGHT
STEREO
LEFT
8 R
4. two 100 watts amp heads or a Stereo Poweramp (e.g. E850) combined with one ENGL 412 speaker cabinet set to stereo mode R
412 cabinet: rear connection panel
SPEAKER CABINET Ch I Gain Bright
Tube
Bass
Middle
Treble-Clean
Treble-Crunch
Clean Volume
Crunch Volume
Bass
Mid-open
Mid-focused
Treble
Lo Lead Vol.
Hi Lead Vol.
Presence
Depth Punch
Master A
Master B
set to Stereo
Powerball
Bottom V1
V2
V3
V4 R
Power Tube Monitor
Amp
Input
Ch II Gain
open/ focused Ch I /II
Lo Lead Hi Lead Bottom Bottom
6L6GC powered
Gain Lo /Hi
Stand By Power
Ch I Gain Bright
Tube
Bass
Middle
Treble-Clean
Treble-Crunch
Clean Volume
Crunch Volume
Bass
Mid-open
Mid-focused
Treble
Lo Lead Vol.
Hi Lead Vol.
Presence
Depth Punch
Master A
Master B
THRU
MONO
INPUT
RIGHT
STEREO
LEFT
Powerball
Bottom V1
V2
V3
V4 R
Power Tube Monitor
Amp
Input
Ch II Gain
open/ focused Ch I /II
Lo Lead Hi Lead Bottom Bottom
6L6GC powered
Gain Lo /Hi
Stand By Power
8 L
8 R 4
8 L
Or
8
And 8
Or->
8
Or 16
And 16
4 Ohms Parallel
8 Ohms Parallel
1 x 4 Ohms 2 x 8 Ohms
1 x 8 Ohms 2 x 16 Ohms
16
16 Ohms
Amp head #1: Poweramp Output Stereo Poweramp: Left channel
8 R
speaker impedance: 16 ohms Left side 16 ohms Right side output impedance: 16 ohms at each poweramp or stereo channel
4
Or
8
And 8
Or->
8
Or 16
And 16
4 Ohms Parallel
8 Ohms Parallel
1 x 4 Ohms 2 x 8 Ohms
1 x 8 Ohms 2 x 16 Ohms
16
16 Ohms
Amp head #2: Poweramp Output Stereo Poweramp: Right channel
5. a 100 watts combo amp combined with one ENGL 412 speaker cabinet Tube
Gain 1
Bass
Middle
Treble
Reverb
Volume 1
Gain 2
Bass
Middle
Treble
Reverb
Volume 2
Presence
Depth Punch
Master A
Master B
RAIDER 100
Clean off / on Bright CH 1
Bright
V1
Amp
Input
V2
V3
V4
Power Tube Monitor
Mid Master Boost A/B
CH 1 CH 2
Hi Gain
FX Loop
Stand By Power
8 int.
8 L
8 R
8 L
8 R
internal speaker impedance: 8 ohms cabinet speaker impedance: 8 ohms connected in parallel results 4 ohms output impedance: 4 ohms
R
SPEAKER CABINET
412 cabinet: rear connection panel set to Mono
THRU
MONO
INPUT
RIGHT
STEREO
LEFT
4 Ohms Parallel
8 Ohms Parallel
1 x 4 Ohms or 2 x 8 Ohms
1 x 8 Ohms or 2 x 16 Ohms
16 Ohms
Combo Amp: Poweramp Output internal speaker
6. one 50 watts amp head combined with one ENGL 412 speaker cabinet R
SPEAKER CABINET Input
Gain
Bass
Middle
Treble
Presence
Master A
Master B
set to Mono
Fireball Power Tube Monitor V1
Ultra Gain
Bright Depth
412 cabinet: rear connection panel
V2
Tube Amp
8 L
Stand By
Power
8 R
THRU
MONO
INPUT
RIGHT
STEREO
LEFT
speaker impedance: 8 ohms output impedance: 8 ohms
8 L
8 R 8
Or 16
And 16
Or->
16
Or
8
And 8
16 Ohms Serial 1 x 16 Ohms (Use Left Jack!) 2 x 8 Ohms
8 Ohms Parallel 1 x 8 Ohms 2 x 16 Ohms
Amp head: Poweramp Output
7. one 50 watts head combined with two ENGL 412 speaker cabinets
Input
Gain
Bass
Middle
Treble
Presence
Master A
Master B
Fireball Power Tube Monitor V1
Bright Depth
Ultra Gain
V2
Tube Amp
8 L
8 R
8 L
8 R
Stand By
Power
speaker impedance: cabinet #1 8 ohms cabinet #2 8 ohms connected in serial: 16 ohms output impedance: 16 ohms
R
SPEAKER CABINET
412 cabinet #1: rear connection panel set to Mono
THRU
MONO
INPUT
RIGHT
STEREO
LEFT
8
Or 16
And 16
Or->
8 Ohms Parallel 1 x 8 Ohms 2 x 16 Ohms
16
Or
8
And 8
16 Ohms Serial 1 x 16 Ohms (Use Left Jack!) 2 x 8 Ohms
Amp head: Poweramp Output 8 L
8 R
R
SPEAKER CABINET
412 cabinet #2: rear connection panel set to Mono
8 L
THRU
MONO
INPUT
RIGHT
STEREO
LEFT
8 R
8. two 50 watts amp heads or a Stereo Poweramp (e.g. E840) combined with one ENGL 412 speaker cabinet set to stereo mode R
SPEAKER CABINET Input
Gain
Bass
Middle
Treble
Presence
Master A
Master B
V2
Tube
Stand By
Amp
Input
Gain
Bass
Middle
Treble
Presence
Master A
Master B
Power
THRU
MONO
INPUT
RIGHT
STEREO
LEFT
Fireball Power Tube Monitor V1
Ultra Gain
Bright Depth
set to Stereo
Fireball Power Tube Monitor V1
Ultra Gain
Bright Depth
412 cabinet: rear connection panel
V2
Tube
Stand By
Amp
8 L
Power
8 R 8
Or 16
And 16
Or->
8 L
8 R
16
Or
8
And 8
16 Ohms Serial 1 x 16 Ohms (Use Left Jack!) 2 x 8 Ohms
8 Ohms Parallel 1 x 8 Ohms 2 x 16 Ohms
Amp head #1: Poweramp Output Stereo Poweramp: Left channel
speaker impedance: 16 ohms Left side 16 ohms Right side output impedance: 16 ohms at each poweramp or stereo channel
8
Or 16
And 16
Or->
16
Or
8
And 8
16 Ohms Serial 1 x 16 Ohms (Use Left Jack!) 2 x 8 Ohms
8 Ohms Parallel 1 x 8 Ohms 2 x 16 Ohms
Amp head #2: Poweramp Output Stereo Poweramp: Right channel
9. a 50 watts combo amp combined with one ENGL 412 speaker cabinet Input
Clean
Lead
Bass
Middle
Treble
Lead Presence
Reverb
Bright
Lead Volume
Gain Clean Lo/Hi Lead
Screamer 50
Master Tube Amp
Stand By
8 int.
8 L
8 R
8 L
8 R
Power
internal speaker impedance: 8 ohms cabinet speaker impedance: 8 ohms connected in serial results 16 ohms output impedance: 16 ohms
R
SPEAKER CABINET
set to Mono THRU
MONO
INPUT
RIGHT
STEREO
LEFT
8
internal speaker
412 cabinet: rear connection panel
Or 16
And 16
Or->
8 Ohms Parallel 1 x 8 Ohms 2 x 16 Ohms COMBO: INTERNAL SPEAKER
16
Or
8
And 8
16 Ohms Serial 1 x 16 Ohms (Use Left Jack!) 2 x 8 Ohms
Combo Amp: Poweramp Output
Tube Amp Technology
ENGL Ger채tebau GmbH Internet: www.engl-amps.com Text, design, grafics and layout by Horst Langer, ENGL Amp Desinger
We reserve the right to make unannounced technical upgrades!