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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!


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