Engl E670FE Special Edition User manual
E670FE
Special Edition
Operator´s Manual
INTRODUCTION
The ENGL E670FE Special Edition "Founder Edition" repre ent the revival of
the iconic ENGL Special Edition Head. The amplifier wa crafted following
Edmund ENGL´ vi ion of a contemporary ound, achieved by trategically
rounding corner and edge . Almo t 20 year after it initial relea e, there
ha been enough time for the E670 Special Edition to evolve and improve in
term of ound and functionality. Recognizing the need for a reintroduction,
we proudly pre ent the "Founder Edition" of thi remarkable amplifier. It
feature ubtle but nece ary adju tment to uit the demanding onic
preference of the ma termind. The approach taken wa to retain the
characteri tic a pect of the original de ign while refining any rough edge .
In con equence thi ambitiou project meant a ophi ticated challenge for
the Amp Sound De igner Hor t Langer who tarted hi career together with
Edmund Engl in the early eightie . The re ulting product i a highly advanced
and ver atile tube amp head that tand out in today' market.
A the owner of thi exceptional piece of equipment, you are privileged to
experience it unparalleled capabilitie . We are proud to pre ent the ENGL
E670FE Special Edition and we hope your mu ical expectation will be far
exceeded.
Edmund Engl, Founder of ENGL Amp
Tube Driver witch
Pre ing thi button activate the Tube Driver, a circuit imilar to a very imple preamp channel. Think of it
a an active, tube-driven preamp defeat circuit. Note that thi circuit can be elected in reciprocation with
the four channel , whereby reciprocation mean that you can activate the Tube Driver irre pective of the
currently active channel and vice ver a. The LED above thi button light up to indicate Tube Driver i active.
» Thi feature can be controlled via MIDI (MIDI program change only).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
T.D. E.Q. (Tube Driver with Equalizer) witch
Pre ing thi button activate the Tube Driver with EQ. Thi function activate the onboard Tube Driver, a
circuit imilar to a very imple preamp channel. lt could al o be de cribed a an active, tube-driven preamp
defeat circuit, in thi ca e with pa ive tone control . Note that thi circuit can be elected in reciprocation
with the four channel , whereby reciprocation mean that you can activate it irre pective of the currently
active channel and vice ver a. The LED above thi button light up to indicate T.D. E.Q. i active.
» Thi feature can be controlled via MIDI (MIDI program change only).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Clean Gain
Gain control for the Clean channel.
Gain Boo t witch
Pre ing thi button up the gain factor, thereby increa ing the amount of di tortion in Clean and Crunch
Channel. The LED above thi button light up to indicate Gain Boo t i active.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#22).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Crunch Gain
Gain control for the Crunch channel.
Ba
Bottom end voicing of the preamp pa ive EQ the Clean Channel and the Crunch Channel.
Middle
Mid-range voicing control of the preamp pa ive EQ for the Clean Channel and the Crunch Channel.
Clean Treble
Upper range voicing control of the preamp pa ive EQ for Clean Channel.
Crunch Treble
Upper range voicing control of the preamp pa ive EQ for Crunch Channel.
Mid Shift witch
Thi voicing function work on the channel Clean and Crunch and affect both channel by boo ting and/or
cutting certain mid-range frequencie of the ignal when activated. Mid Shift affect a broad mid range
pectrum between approximately 200 Hz and 2 KHz. The red LED above the pu h button light up to indicate
that Mid Shift i activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#23).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Bright witch
Thi voicing function work on the channel Clean and Crunch and affect both channel by boo ting the
upper treble range (effectivene decrea e at higher Gain etting ). The red LED above thi button light up
to indicate that Bright i activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#29).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Reverb
Thi control adju t the amount of reverb for the Clean Channel and the Crunch Channel.
Clean Volume
Volume control for the Clean channel (pre-FX Loop, influence the end level). U e thi knob to dial in the
de ired balance of level between the Clean channel and the other channel .
Clean witch
Channel elector to activate the Clean channel. The green LED top right of the Clean Volume and the Clean
Treble knob light up to indicate that the Clean channel i engaged.
» Thi feature can be controlled via MIDI (MIDI program change only).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
» Thi feature can be controlled via the ENGL Z4 Foot witch (optional available acce ory; conventional
6.3mm / ¼” TRS – dual foot witch).
Crunch Volume
Volume control for the Crunch channel (pre-FX Loop, influence the end level). U e thi knob to dial in the
de ired balance of level between the Crunch channel and the other channel .
Crunch witch
Channel elector to activate the Crunch channel. The yellow LED top right of the Crunch Volume and the
Crunch Treble knob light up to indicate that the Crunch channel i engaged.
» Thi feature can be controlled via MIDI (MIDI program change only).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
» Thi feature can be controlled via the ENGL Z4 Foot witch (optional available acce ory; conventional
6.3mm / ¼” TRS – dual foot witch).
Pre ence A
Thi control define the Treble re pon e in the poweramp tage. The red LED top right to the knob light up
to indicate Pre ence B i active.
Pre ence A/B witch
Switche back and forth between Pre ence A and Pre ence B. The LED top right to the re pective Pre ence
control light up to indicate which one i activated. Pre ence A i indicated by a red LED, Pre ence B i
indicated by a green LED.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#25).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Pre ence B
Thi control define the Treble re pon e in the poweramp tage. The green LED top right to the knob light
up to indicate Pre ence B i active.
Depth Boo t witch
Pu h thi pu h button to beef up the bottom end in the poweramp tage only. The red LED above thi button
light up to indicate the Depth Boo t i activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#26).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Mega Lo Punch witch
Pu h thi pu h button to beef up the bottom end globally in the preamp circuit for the four channel
excluding the Tube Driver Channel and to ome extent in the poweramp too. The red LED above thi button
light up to indicate the Depth Boo t i activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#27).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
FX Loop I/II witch
Pu h thi button to witch between FX Loop I and FX Loop II. The red LED above the pu h button light up to
indicate that FX Loop II i activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#30).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Serial FX Loop witch
Pu h thi button to witch on the erial FX Loop. The red LED above the pu h button light up to indicate that
the erial FX Loop i activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#31).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Input jack
Unbalanced input (conventional 6.3mm / ¼” TS). Plug your guitar in here u ing a hielded in trument cable.
Amp Mute LED
Thi LED light up when Amp Mute i active and/or when the Stand By witch i activated (amp i in Stand By
mode).
» Amp Mute can be controlled via MIDI (MIDI program change and/or control change CC#7).
Note: If you want the power amp to be enabled in a MIDI pre et, you mu t program it with Stand By et to On
po ition!
Lead I Gain
Gain control for the Lead I channel.
Hi Gain witch
Pre ing thi button up the gain factor, thereby increa ing the amount of di tortion in both Lead Channel .
The red LED above thi button light up to indicate Hi Gain i active.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#22).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Lead II Gain
Gain control for the Lead II channel.
Ba
Bottom end voicing of the preamp pa ive EQ the Lead I Channel and the Lead II Channel.
Middle
Mid-range voicing control of the preamp pa ive EQ for the Lead I Channel and the Lead II Channel.
Lead I Treble
Upper range voicing control of the preamp pa ive EQ for Lead I Channel.
Lead II Treble
Upper range voicing control of the preamp pa ive EQ for Lead II Channel.
Contour witch
Thi voicing function work on the channel Lead I and Lead II and affect both channel by boo ting and/or
cutting certain mid-range frequencie of the ignal when activated. Contour affect more prominently the
lower mid range below 400 Hz and in addition to a certain degree even higher mid frequencie . The red LED
above the pu h button light up to indicate that Contour i activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#23).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Mid Edge witch
Thi voicing function work on the channel Lead I and Lead II and affect both channel by boo ting/cutting
certain mid-range frequencie of the ignal when activated. Mid Edge affect more prominently the higher
mid range above 600 Hz and in addition to a le er extent even lower mid frequencie . The red LED above
the pu h button light up to indicate that Contour i activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#29).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Reverb
Thi control adju t the amount of reverb for the Lead I Channel and the Lead II Channel.
Lead I Volume
Volume control for the Lead I channel (pre-FX Loop, influence the end level). U e thi knob to dial in the
de ired balance of level between the Lead I channel and the other channel .
Lead I witch
Channel elector to activate the Lead I channel. The red LED top right of the Lead I Volume and the Lead I
Treble knob light up to indicate that the Lead I channel i engaged.
» Thi feature can be controlled via MIDI (MIDI program change only).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
» Thi feature can be controlled via the ENGL Z4 Foot witch (optional available acce ory; conventional
6.3mm / ¼” TRS – dual foot witch).
Lead II Volume
Volume control for the Lead II channel (pre-FX Loop, influence the end level). U e thi knob to dial in the
de ired balance of level between the Lead II channel and the other channel .
Lead II witch
Channel elector to activate the Lead II channel. The red LED top right of the Lead II Volume and the Lead II
Treble knob light up to indicate that the Lead II channel i engaged.
» Thi feature can be controlled via MIDI (MIDI program change only).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
» Thi feature can be controlled via the ENGL Z4 Foot witch (optional available acce ory; conventional
6.3mm / ¼” TRS – dual foot witch).
Ma ter A
Ma ter volume knob, located po t FX Loop. It control the poweramp output level. The red LED top right to
the knob light up to indicate Ma ter A i active.
Ma ter A/B witch
Pu h thi button to witch between Ma ter A and Ma ter B. The LED top right to the re pective Ma ter
control light up to indicate which one i activated. Ma ter A i indicated by a red LED, Ma ter B i indicated
by a green LED.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#14).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Ma ter B
Ma ter volume knob, located po t FX Loop. It control the poweramp output level. The green LED top right to
the knob light up to indicate Ma ter B i active.
Modern/Cla ic witch
Thi ound- haping feature voice the ba ic tonal character of the four channel Clean, Crunch, Lead I and
Lead II. You can choo e between a more contemporary ound (Modern) or vintage-approved (Cla ic) tone.
The red LED above the pu h button light up to indicate that the Cla ic mode i activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#15).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Reverb Active witch
Pu h thi button to activate / deactivate the Reverb function. The red LED above thi button light up to
indicate that the function i activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#28).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Noi e Gate witch
Pu h thi button to activate / deactivate the Noi e Gate function and uppre exce noi e in the Crunch,
Lead I and Lead II Channel . Control the Noi e Gate thre hold u ing the Noi e Gate Thre hold knob located on
the back panel of the amp. The red LED above thi pu h button light up to indicate that the function i
activated.
» Thi feature can be controlled via MIDI (MIDI program change and/or control change CC#24).
» Thi feature can be controlled by the Z9 foot witch (optional available acce ory) via the Serial Amp
Control (S.A.C.) Port.
Write/Copy
Pre thi button to tore the modified etting of a programmable feature to a MIDI memory lot (generally
called a pre et). Here i how to di tingui h between WRITE and COPY: with the former you‘ re actually
programming or writing a new MIDI pre et, with the latter you‘ re making an exact duplicate of an exi ting
pre et. The y tem will elect a WRITE operation whenever you edit a MIDI pre et, that i , when you have
modified a programmable feature. You‘ ll know that thi i the ca e becau e the Statu LED fla he teadily
when you edit one or everal programmable feature . If you pre the button and did not edit a MIDI pre et,
the y tem will elect. Thi mean that the given pre et become the ource, and it content are dumped
to another pre et and tored there. When you pre thi button, the Statu LED light up continuou ly to
indicate i activated. The y tem quit mode autonomou ly if you do not elect a new MIDI pre et within
about 30 econd . The pre et programming proce – the WRITE command, that i – i not carried out a
oon a you pre the button. Pre ing the button merely initiate the proce . You mu t hold it down for
about a econd until the Statu LED fla he three time in rapid ucce ion. Thi mechani m i de igned to
prevent inadvertent programming. You can cancel the programming proce at any time before the Statu
LED fir t illuminate by relea ing the WRITE button. Again, the pre et will only be programmed ucce fully
if you pre and hold the button until the Statu LED fla he three time .
You‘ ll have to go through a imilar routine to copy a pre et once you elect a target pre et: When the
Statu LED extingui he , the copy operation i underway and can no longer be canceled. The LED fla he
three time to indicate the pre et wa copied ucce fully. You can cancel the copy operation by relea ing
the key, but only for a long a the LED light up continuou ly.
MORE GOOD TO KNOW INFO: Note that the Statu LED al o indicate the tatu of component unrelated to
WRITE and COPY. The micro controller run a hort y tem check after you witch the amp on. Should it find
a defect in the memory chip (EEPROM), the LED will fla h in a pattern of five hort bur t . Pre the
WRITE/COPY button to confirm that you got the me age. Once you have done thi , the y tem will be ready
to run, although you may encounter problem when attempting to elect or tore MIDI pre et.
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