Engl INVADER II User manual

Operator´s Manual
Please, first read this manual carefully!
4 Channel Full Tube
Guitar Amplifier
with MIDI-Control
INV
A
DER II

2
INVADER II: Front Panel Layout
INVADER II: Rear Panel Layout
GAIN 2
GAIN I
MIDDLE MIDDLE
TREBLE TREBLE
VOLUME 2
VOLUME I
GAIN 4
GAIN 3
TREBLE TREBLE VOLUME 3
VOLUME 4 MASTER A
PRESENCE
MASTER B
DEPTH PUNCH
INPUT
POWER
STAND BY
BASS BASS
BASS BASS
MIDDLE MIDDLE
SOUND
CH 4
FX LOOP
I / II
CH 1 CH 2 MASTER
A/B
CH 3 NOISE
GATE
WRITE /
COPY
MUTE
HIGH
GAIN
IN
V
A
DER II
S.W.M.
Amp
Tube
123456
REPLACE FUSE
ONLY WITH SAME TYPE
AND RATING !
Poweramp Output
48Or 8And Or-> 816Or 16And
8 Ohms Parallel
1 x 8 Ohms or 2 x 16 Ohms
4 Ohms Parallel
1 x 4 Ohms or 2 x 8 Ohms
16
16 Ohms
Noise Gate
Threshold
Level
min. max.
FX Loop II
Send Return Balance
Dry Effect
FX Loop I
Send Return Balance
Dry Effect
DO NOT OPEN !
RISK OF ELECTRIC SHOCK !
DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE !
CAUTION !
!
Footswitch
Serial Amp
Control Port
CAUTION:
Connect Custom
Footswitch Z-9 Only!
Midi
Thru Midi
In
Midi Foot-
Controller
Channel:
Up < > Down
1 < > 3 / 2 < > 4
Midi
Channel
&
Amp Mute
Signal Outputs
Line Out
Pre
Output
HRB 6238
Tuner Poweramp
Ground Lift
Switch
Ground
Floated
Ground
Or->
Channel 4Channel 3Channel 2Channel 1
Low / High Gain - Volume Ratio Control
All-tube
Guitar Head Amp
INVADER-II
TYPE E642-2
designed by Horst Langer
optically refined by Edmund Engl
MADE IN GERMANY
R
Amp
Tube
page: >6< <----------------------- 8 -----------------------> <---------------------------------- 9 -----------------------------------> <---------------------- 10 ---------------------> >11
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
page: 11< <----------------------------12 ----------------------------> <------- 13 -------> <------------------------------------------ 14 ------------------------------------------> > 15 < <--16 --> >18< page: <------------------ 23 ----------------->
18 19 20 21 25
22 23 24 26 27 28 29 30 31 32 33 34 35 38 39
36
Type Plate
<---- 18 ----> <------------------ 19 ------------------> <- 21 -> <--------------- 22 ---------------> <------ 23 ------> <---------------------------- 24 ----------------------------->
page:
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37
56 57 58 59
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18 19 20 21 25
22 23 24 26 27 28 29 30 31 32 33 34 35 38 39
36
40 4342 44 45 46 47 48 49 50 51 52 53 54 55 60 61 62 63 64 65 6641
37
56 57 58 59

Table of Contents page
Introduction
Features and Functionality at a Glance
Contents
Front Panel Features:
Rear Panel Features:
Practical Info and Tips
Glossary
Troubleshooting
Technical Data,
Tube Map, Tube Exchange Service
Wiring of Principal Connectors
Remote Control Options
Front Panel Diagrams for Noting Settings
Note:
:
Handling and Care
Sound
Channel 1: Gain 1,EQ-1: Bass, Middle, Treble, Volume 1, CH 1
Channel 3: Gain 3, EQ-3: Bass, Middle, Treble, Volume 3, CH 3
Power Amp EQ: Presence A/B, Depth Punch
FX Loop I/II, Noise Gate
Input, High Gain
Channel 2: Gain 2, EQ-2: Bass, Middle, Treble, Volume 2, CH 2
Channel 4: Gain 4, EQ-4: Bass, Middle, Treble, Volume 4, CH 4
Power Amp section: Master A/B
Write/Copy, Mute, SWM LED
Stand By, Details on Amp Mute and the P.T.M. System, Power
Ground Lift Switch
Low / High Gain - Volume Ratio Control CH 1, CH 2, CH 3, CH 4
Pre Out, Line Out
Poweramp Output: speaker options
Mains, Mains Fuse,
MIDI Section and Footswitch Ports
Detailed Specifications and Ratings
You'll find an ancillary pamphlet accompanying this owner's manual entitled
Instructions for the Prevention of Fire, Electrical Shock and Injury. Be sure to read it
before you plug in and power up the amp!
Technical specifications are subject to change without notice.
Noise Gate: Threshold Level
FX Loops I and FX Loop II: Send, Return, and Balance
Power Amp Output, 4, 8, 16 Ohms
Configuration table for Z-9 settings
Front Panel and Rear Panel Diagrams
CAUTION! Please read and heed the following:
Status-LED: Indications
4
5
6
25 - 28
28, 29
29, 30
30
31, 32
33
34
35
36
37
38
2, 39
6 - 8
8, 9
9, 10
10
10, 11
11, 12
12, 13
13, 14
14, 15
15, 16
16 - 18
18,19
19 - 22
22
22, 23
23
24
24
24, 25
3

Congratulationsonyourchoiceofamp,themightyENGLINVADERII tube-
powered head high-performance guitar amp
severalinnovativenewideas remarkablyefficientfeatures
top-notch guitar amp all-tube technology
vast range of great
fundamental tones
controlledremotelyviaMIDI
four independent channels deliver different
tonal spectrums
fast & heavy riffs punchy lead tone
assertive midrange kick
vintage clean classic grind creamy rock lead tone thick, lush tube
overdrive kind of aggressive hi-gain lead sound
contemporaryheavystyles
Sound button DIY tone-tuning tool vastly
extends unprecedented feature
fine-tune its voicing optional
SoundWizardmodule
A/B Master switching
INVADER II head two
switchableeffectloops programmableAmpMutefunction
MIDIfootcontroller
ENGLZ-4dualfootswitch
exterior's compelling visuals
excellent voicing options great flexibility
ENGL Sound Wizard module
clean crunch lead sounds excellent tube-driven quality
Two gain stages double instantly accessible
sounds
.Withthis
, you now own a that incorporates
and .
This marries the unrivalled tone of to the
awesome sound-shaping might of control features powered by modern microchip
circuitry. This elegant combination puts at your fingertips a
and a virtually inexhaustible reservoir of compelling variations, all
ofwhichmaybe .
TheINVADER IIamp offers -tweaked to
for various styles and playing techniques, for instance, Channel 4 for
and an power chords; Channel 3 for with an
. All four channels offer Low Gain / High Gain switching, as
well as dedicated Gain and Volume knobs and a 3-band EQ for each channel that give
you an even greater range of sound-sculpting options. The tonal palette ranges from
to , and from with
tothe it takesto cutthrough the din
of .
Then there's the nifty , a sort of that
the amp's application range. This lets you shape the
amp's fundamental sound as you see fit and using the
.
This amp boasts a lot more hip and practical features:
is a powerful option that has proven its merits in countless
ENGL amps (it has featured in E920 power amps since the late '80s and in the
legendary SAVAGE 120 head since '93!). Your also sports
anda .
Asanalternative tooperatingtheampremotelyviaa suchasthe
ENGL Z-15, you can also plug in an ENGL and manipulate
keyfunctionsdirectly.What'smore,theampcomeswithastereojackdesignedtotake
an oraswitchingsystemforselectingthefourchannels.
And the certainly match the interior's impressive
appointments. This amp's elegant and stylish look is sure to turn heads wherever you
play.
and the provided by so many sound
shaping and other special functions. You can also tweak the amp's fundamental
sound to taste using the , and your voicings can be
assigned to 128 MIDI presets.
3. fundamental , , and in :
in every channel the count of
. You can select channels and adjust Gain Low/High and the Sound
Z-9 Custom Foot Controller
1. a logical control feature array, utmost and
;
2.
ease of use remarkably intuitive
handling
This gives you:
4

function's setting via MIDI, affording you to a .
What's more, the is to match
the amp's various operating modes, which of its
.
4. and knobs in each of the four channels and a
for let you dial in distinct tones with surgical precision.
-> and ports serve to integrate the amp into a MIDI system.
-> , accessible via 16 MIDI channels.
-> The
The Serial Amp Control Port accepts the Custom Z-9 Footswitch (optional); use it
as a conventional switcher to select channels and two more functions directly.
Then there's the MIDI In, which accepts the Z-9 for use as a simple MIDI
footcontroller or any other MIDI footcontroller. Finally, the amp is equipped
with a stereo jack that takes a dual footswitch, allowing you to switch the
four channels remotely.
-> for suppressing noise in ,
and .
Among the hallmarks of this fine amp are painstaking workmanship and finishing as
well as rigorously tested and carefully selected quality components. You'll find
guidelinesoncareandmaintenanceoftubeampsonpage28.UndertheheadingTips
from the designer, you'll come across practical tips on the aforementioned features
quick access broad tonal palette
Sound function's voicing automatically adjusted
extends the scope tonal
spectrum tremendously
Separate Gain Volume 3-band EQ
channels 1, 2, 3 and 4
128 MIDI presets
INVADER II amp offers three different remote interface ports:
Programmable Noise Gate
5. - an that's versatile
enough to cover a wide range of applications.
It can even be with , all of which will give
you and .
-> :,, and with
separate Gain and Volume knobs.
-> (and with the optional ) for each
of the basic channels: The High Gain function affords you instant access
to with for .
> : one EQ for each Channel featuring
Bass, Middle and Treble.
-> The versatile for Channel 1, 2, 3 and 4:
It is to the given channels' .
-> and are variable, switchable effect
loops. Each effect loop may be activated for each channel.
-> The power amp's and knobs are .
MIDI controller #7 or #28 accesses , and in addition
is . These choices come in handy if you wish to use
the signal to .
ENGL INVADER II ultra-advanced tone-generating machine
extended Sound Wizard technology
years of playing pleasure value to boot
Four basic channels
Two Gain variants three
two gain settings different voicings every channel
Four voicing sections
Sound voicing button
tuned match tonal characteristics
Two effect loops:
A B Master accessible via MIDI
MIDI-programmable
Pre Output tune your guitar
Features and Functionality at a Glance
Channel 1 Channel 2 Channel 3 Channel 4
FX Loop I FX Loop II
Amp Mute Amp Mute
Sound Wizard
-
MIDI In Thru
Channel 2 Channel 3
Channel 4
5

throughout the manual. All critical information concerning the operation of this amp
is preceded by "NOTE", "CAUTION", "Read and heed" or some other eye-catching
comment.We're callingyour attentionto theseremarks forreasons ofsafety orother
compellingmotives,sopleasegivethemdueconsideration.
Everyone at ENGL is confident that the
and aresure to delightyou:
Andthe isthe
ifyouwanttogeteven when .
Though this amp head is relatively easy to handle and you're probably raring to give it
a go, I recommend that you read the owner's manual thoroughly before you power it
up. It is equipped with several safety features that require further explanation to
preventmalfunctions.
1. ENGL INVADER II Tube Amp Head;
2. mains cord;
3. this manual;
4. a pamphlet entitled .
The Sound Wizard module referred to is not included.
The Sound function takes on a certain type of voicing that is determined by the
selected channel and the given gain stage setting. This function's setting - Sound off/
on - affects the amp's overall sound. You can assign many typical voicings individually
to the two and settings when using the ENGL Sound Wizard
module(optional). The LEDabovethe buttonlightsup to indicatetheSound function
is enabled ( ). It may also be switched via MIDI program change or the ENGL
CustomZ-9footswitch.
The following list shows how the Sound function works when enabled ( ) in
various modes and the ENGL Sound Wizard module is not installed (or the is set
to ): : (that's switch #4 on the )
: (that's switch #3 on the )
: (that's switch #5 on the )
: (that's switch #3 on the )
: (that's switch #2 on the )
: & (that's switch #3
combined with switch #4 on the )
INVADER II tube amp's extraordinary
versatility outstanding features Simply plug in, play and
beinspiredbythetoneofyournewENGLamp! SoundWizardmodule
perfectadd-on morecreative sculptingyourtone
A few words of wisdom from the designer:
Contents:
Instructions for the Prevention of Fire,
Electrical Shock and Injury
Sound off Sound on
Sound on
Sound on
SWM
SoundWizardoff
CHANNEL 1 & Low Gain Twang SWM
CHANNEL 1 & High Gain Low Midrange SWM
CHANNEL 2 & Low Gain Bright SWM
CHANNEL 2 & High Gain Low Midrange SWM
CHANNEL 3 & Low Gain Low End SWM
CHANNEL 3 & High Gain Low Midrange High Midrange
SWM
Front Panel Features
in this manual
Onpage2and39ofthemanual,you'llfinddiagramsofthefrontandrearpanels.
1Sound
6

CHANNEL 4 & Low Gain Low End SWM
CHANNEL 4 & High Gain Low Midrange High Midrange
SWM
Twang Bright
High Gain
Bright
: (that's switch #2 on the )
: & (that's switch #3
combined with switch #4 on the ).
TheSoundfunctiongivesyousomuchcreativeleewayinvoicingtheampthatitmerits
a closer look: In the preceding section, you learned that you can activate a certain
voicing such as for Channel 1 in Low Gain mode or for Channel 2 in Low
Gain mode. Note that 'Low Gain mode' simply means that is not activated.
Your choice of voicing will of course depend on the selected mode, which in turn is
determinedbythecurrentlyactivechannelandthegivengainstagesetting.
The Sound button's voicings are automatically adjusted to match the amp's operating
modes as determined by the given channel and gain stage. This is very beneficial to
your tone. Here's why: Each tonal flavor has certain frequency ranges that can be
tweaked to fine-tune that type of tone. As you can imagine, these frequency ranges
vary from sound to sound, say from a pristine clean tone to a heavily overdriven lead
sound.Avoicingsuchas wouldhardlyenhanceadistortedtone,soit'snotmuch
use in shaping lead sounds. However, tweaking the low end and various midrange
frequencies can certainly change the flavor of crunchy rhythm sounds or singing lead
tones. But I don't want to bore you by trying to describe all the Sound voicings'
specifics. Besides, tone is very subjective, so here's my recommendation: Plug in your
guitar and try out all 16 variations by combining the channel's fundamental sound in
LowGainandHighGainmodesandswitchtheSoundfunctionoffandon.Anaudition
willtellyoualotmorethanwordsevercould.
Nonetheless, I do want to devote a few more words to an optional feature that
extends the tonal capabilities of the Sound function on the INVADER II amp. It caters
to demanding players who want to sculpt their sound with the surgical precision of a
scalpel rather than beat it into shape with a mallet. Closet hot-rodders and amp
modderswillfindplentytoloveinthistool.
Seeking to give creative guitarists practically unlimited freedom to shape their tone, I
started tinkering with the idea of a sound-tuning tool for everyone. Eventually, we
cameupwiththe Sound Wizardmodule. Thisoptional add-onenables anyguitarist to
fine-tune all the fundamental sounds of the INVADER II amp without havingto take a
soldering iron to its circuitry. Best of all, these modifications can be done without any
knowledgeofelectronics.RestoringtheINVADERIItoitsoriginalvoicingisassimpleas
flipping a single switch. The unique Sound Wizard module is truly extraordinary
becauseitdoeswhatsomanyguitaristshavebeenwantingtodoforsuchalongtime-
letsthem thesoundoftheirampstosuittheirtaste.
A single connector plugs the Sound Wizard module into the amp's circuitry. The ENGL
Sound Wizard module provides 96 rockers on 16 DIP switches for fine-tuning your
sound. 16 LEDs next to the DIP switches tell you which configuration of rockers is
currentlyactivefor agivenampmode(Channel,Gain&Soundsettings).Aslideswitch
enables and disables the Sound Wizard module. The module's status is indicated by a
separateLED onthemodule aswellas bytheSWM LEDonthe amp'sfrontpanel. You
can encode a total of 64 different settings on the Sound Wizard module for each amp
mode. The variations on Channel, Gain & Sound settings give you a total of 16 modes.
A tip from the designer:
it fine-tune
The Sound Wizard module sits in the amp's rear panel, so all you have to do is replace
thepanel.There'snoneedtoremovetheamplifierchassis.
7

All this means you have a whole bunch of configurations for fine-tuning your amp. In
addition to offering specific voicings such as , and , the Sound
Wizard also lets you modify the gain stages in certain modes and activate a special
parameter called for each amp setting to balance out different volume
levels. You will find a detailed description of the Sound Wizard's tuning capabilities in
themanualthatcomeswiththemodule.
Gaincontrolfor Channel 1'spreampsection.This knobdetermines thepreamp's input
sensitivitywhenChannel1isselectedand,byextension,thepreampsignal'ssaturation
level.
The amount of distortion depends on your guitar's pickups and the High Gain ( )
setting. In Channel 1, single-coil pickups may begin saturating the preamp when the
knob is set to about the two o'clock position; pickups with very high output levels
(humbuckersoractive pickups)will evokemildoverdriveat evenlower settings.Ifyou
wantsqueakycleantone,simplybackofftheGainknobaccordingly.
Ifyourguitarsportssingle-coilsandyouwanttoaddsomegrittoyourtoneandbiteto
your riffs, set the knob somewhere between 12 and 3 o'clock. For higher output pick-
ups such as humbucking or active jobs, dial in settings between 10 and 1 o'clock and
activate .
Thisisthepreampvoicingsection'spassivelow-frequencyEQfor .
This is the preamp voicing section's passive midrange frequency EQ for .
Thisisthepreampvoicingsection'spassivehigh-frequencyEQfor .
Bright Twang Mid Boost
Attenuator
HighGain
Channel1
Channel 1
Channel1
Atipfromthedesigner:
2 Gain1
3Bass
4Middle
5Treble
19
To help you get acquainted with the amp's fundamental sounds, I recommend that
youset alltonecontrols toor slightly higherthan thecenteror 12o'clock position. For
higher-gain preamp sounds, your best bet is to turn the Treble knob down to prevent
the pickups and speakers from generating feedback (a setting in the 10-to-2 o'clock
rangeisrecommended). Youwill findthat grittiertonesgenerallysound betterwith a
touch less treble because preamp saturation makes higher frequencies figure more
prominently in the signal. Each channel is equipped with a dedicated EQ so you can
tweakitssoundseparatelytosuityourtasteandthegivensonicscenario.Bearinmind
that you also have the Sound (1) button, as well as the power amp Presence (14) and
Depth Punch (15) knobs, at your disposal for shaping the frequency range. You can
program various MIDI presets with the Sound option remotely and have plenty of
tonalvariationsatyourfingertips.
Atipfromthedesigner:
8

6Volume1
7CH1
8Gain3
9Bass
10Middle
11Treble
PushthisbuttontoactivatepreampChannel1attheamp.ThegreenLEDtotherightof
theChannel1Volumeknob(6)lightsuptoindicate isactive. may
alsobeactivatedviaMIDIprogramchange,theENGLCustomZ-9Footswitch,oradual
footswitch.
vigorous
To help you get acquainted with the amp's fundamental sounds, I recommend that
you set all tone controls to the center or 12 o'clock position. For higher-gain sounds in
your best bet is to turn the Treble knob down to prevent the pickups and
speakers from generating feedback (a setting in the 10-to-2 o'clock range is
recommended).
Channel1 Channel1
Channel 3
Volume control for Channel 1's preamp section. Use this knob to adjust the volume of
Channel1'spreampanddialinthedesiredbalancewiththeotherthreechannels'levels.
Becausethisknobislocatedpreeffectsloop,italsodeterminesthesendlevelsforboth
FXloopswhen isselected.ThegreenLEDtotherightoftheknoblightsupto
indicate ison. Usethe knob(56) onthe amp'srear panelto balanceout the
relativevolumesofHighGainandLowGainmodes.
Gaincontrolfor Channel 3'spreampsection.This knobdetermines thepreamp's input
sensitivitywhenChannel3isselectedand,byextension,thepreampsignal'ssaturation
level.
Like Channel 4, Channel 3's gain structures range from to extreme, making it
a great choice of channel for fat, creamy lead sound with plenty of sustain. The High
Gain (19) and Sound (1) functions let you tune Channel 3's fundamental tone to suit
different playing techniques. This channel has plenty of headroom, so I recommend
setting the Gain knob to somewhere between 8 and 1 o'clock. This will let you dial in
impressive sounds with preamp saturation figuring prominently in the tone. The High
Gain function comes in especially handy in conjunction with Gain settings below 12
o'clockbecauseyoucanuseittoshapeandaccesstwodistinctlydifferenttones.
Extremely high gain and volume levels in Channel 3 can produce powerful
feedback. Avoid feedback squeals; they can lead to hearing loss and damage
speakers! At higher volumes, back off the Gain, Treble and Presence levels in order to
preventuncheckedfeedback!
Thisisthepreampvoicingsection'spassivelow-frequencyEQfor .
This is the preamp voicing section's passive midrange frequency EQ for .
Thisisthepreampvoicingsection'spassivehigh-frequencyEQfor .
Channel1
Channel 1
Channel3
Channel 3
Channel3
Atipfromthedesigner:
CAUTION:
Atipfromthedesigner:
9

EachchannelisequippedwithadedicatedEQsoyoucantweakitssoundseparatelyto
suityourtasteandthegivensonicscenario.BearinmindthatyoualsohavetheSound
(1) button, as well as the two power amp Presence (14) and Depth Punch (15) knobs,
atyourdisposal forshaping thefrequencyrange. Thoughthis passivevoicingsection's
controls range is narrower than that of a comparable active system, its EQ curve is
tweakedspecificallyforitsdesignatedpurpose,andwillgiveyousatisfyingresults.
Pressthisbutton toactivate preamp atthe amp.TheredLED tothe rightof
theChannel3Volumeknob(12)lightsuptoindicate isactive. may
alsobeactivatedviaMIDIprogramchange,theENGLCustomZ-9Footswitch,oradual
footswitch.
Power amp Presence knob. This knob determines the power amp's high frequency
responseandaffectsallchannels.
This control shapes the lo frequency response in the power amp stage and affects all
channels.
13CH3
14Presence
15DepthPunch
16FXLOOPI/II
Channel3 Channel3 Channel3
12Volume3
Volume control for Channel 3's preamp section. Use this knob to adjust the volume of
Channel3'spreampanddialinthedesiredbalancewiththeotherthreechannels'levels.
Becausethisknobislocatedpreeffectsloop,italsodeterminesthesendlevelsforbothFX
loopswhen isselected.TheredLEDtotherightoftheknoblightsuptoindicate
is on. Use the knob (58) on the amp's rear panel to balance out the relative
volumesofHighGainandLowGainmodes.
This button switches to and fro between and . The red LED above
the button lights up to indicate is on. You can also select loops via MIDI
programchangeortheENGLCustomZ-9Footswitch.
Both effect loops can be configured in series (that is, 100% processed signal when
is set to ) or in parallel (1% to 99% mix of preamp and effect signal when
is set somewhere between and ), or be bypassed altogether (0 % wet
balance when is set to ). You can connect an effect device to each of the
effect loops and switch from one effect device to the other using the FX Loop I/II
function, or employ just one of the two effect loops (for example, FX II Loop) and use
to activate the effect. In the latter case, serves as a bypass (set
its knob to the position). Note that in the signal path, and
controlsarepost andpre the power amp.
Channel3
Channel 3
FX Loop I FX Loop II
FX Loop II
Balance wet
Balance dry wet
Balance dry
FX Loop I/II FX Loop I
Balance dry Master A
MasterB FXLoop Return
Atipfromthedesigner:
10

17NoiseGate
18Input
Press this button to activate an onboard and suppress excess noise in
channel 2, 3 or 4. Control the using the Level Threshold (49) knob on the
back of the amp. The LED above the button lights up to indicate the is
activated. This feature can also be switched via MIDI program change or the ENGL
CustomZ-9Footswitch. : The may open up inadvertently
when the is activated, a high-gain channel is selected, and the volume
exceeds the Threshold knob setting. At very high volume and gain settings, this may
generate instant feedback, particularly if your guitar is facing the speakers. Rather
than musical and controlled, this is the shrill, unpleasant and potentially harmful
variety of feedback squealing that sends your audience and fellow musicians packing.
Thoughtheampisnotmoresusceptibletofeedbackwhenthe isactivated,
the fact that it suppresses extraneous noise means you can't hear those telltale signs
that feedback is swelling and consequently can't take measures to suppress it. For this
reason, make an extra effort to be careful when the is activated: Before
you approach the amp and speaker cabinet with your guitar in hand, turn the guitar's
volume knob to the far left position (to 0 so that no signal is audible) to prevent the
pickupsandspeakersfrominteracting!
Noise is a definite no-no in many situations. For example, studio etiquette demands
that you keep a lid on extraneous noise during short breaks. It's in the nature of high-
gain rigs to generate undesirable peripheral noise in overdriven channels. This is
attributable to the physical properties of an amp's constituent components, in
particularitsactivecomponents.That'sright;thosecherishedtubesaretheculprits.
The is a tool that lets you silence this noise during breaks by way of signal
mute circuit. Note that electric guitars pick up interference signals, and these are
amplified tremendously at high gain levels in High Gain mode. The most common
source of noise is 50 or 60 hertz mains hum, particularly when the guitar is positioned
neartransformers andpower units.Becausein worst-casescenariosthis hummingcan
attain extremely high levels, the can hardly distinguish between the
musical signal and noise. This makes it hard to find the right Threshold setting. It is
entirelypossibleforthishummingandothernoisetorisetoalevelthatdeactivatesthe
and therefore becomes audible. My advice is to stay as far away from
transformersandpowerunitsasspaceallows.
¼"unbalancedinputjack.Plugyourguitarinhereusingashieldedcord.
Depending on the type of cord and its shielding, you may occasionally encounter
interference from sources such as radio stations or powerful magnetic fields. When
this occurs, try connecting your guitar to the amp using different cords. What's more,
to minimize signal degradation due to high-frequency loss, use the shortest cords
feasible (as a rule, the shorter the cord, the less susceptible it is to high-frequency
attenuation).
Noise Gate
Noise Gate Noise Gate
Noise Gate
Noise Gate
NoiseGate
Noise Gate
Noise Gate
Noise Gate
Noise Gate
IMPORTANT note; please read and heed
Atipfromthedesigner:
Atipfromthedesigner:
11

19HighGain
21Bass
22Middle
23Treble
CAUTION: Extremely high gain and volume levels in Channel 2 can produce powerful
feedback. Avoid feedback squeals; they can lead to hearing loss and damage
speakers! At higher volumes, back off the Gain, Treble and Presence levels in order to
preventuncheckedfeedback!
Pressingthisbuttonbooststhegainandamountofdistortioninallfourchannels, ,
, and . TheLED abovethisbutton lightsupto indicate is active.
This feature can also be switched via MIDI program change or the Custom Z-9
footswitch. You can also use the optional Sound Wizard module to modify the two
gainstages.Seethedescriptionofthe formoreonthis.
Obviously,thedifferencebetweenLowandHighGainisthatthelattergivesyoumore
preampjuice.ButIalsotunedfrequencyresponsetosuiteachchannel'sgainstructure,
which is a long-winded way of saying the four channels give you eight great sonic
choices. Depending on the selected channel and Gain knob setting, the spectrum
rangesfrom pristineclean ( and )to ultrasaturated leadtone ( and ),
rich in overtones and gain reserves for screaming solos and crashing power chords.
Whatevertonesyourstyle,genreandwhimsmaydemand,you'llfinditbetweenthese
two extremes. The options are too numerous to mention, so switch back and forth
between Low and High Gain in each of the four channels and vary the Gain knob
settings to get to know their tonal characteristics and make the most of these eight
fundamental sounds. The optional Sound Wizard module lets you select another gain
stage, ,inadditionto and .Seethedescriptionofthe
formoreonthis.
Gaincontrolfor Channel 2'spreampsection.This knobdetermines thepreamp's input
sensitivitywhenChannel2isselectedand,byextension,thepreampsignal'ssaturation
level.
offers moderate to middling gain structures for great alternative clean
sounds with slightly higher gain levels and different flavors than those provided by
. Set it to if you wish to dial in classic rock riffs with anything from
subtle to in-your-face preamp overdrive. Even in Low Gain mode, you can conjure a
slightly dirtier sound at Gain settings around 12 to 2 o'clock, and lower with
humbuckingpickups.Thisisaniceoptiontohavewhenyou'regoingforagrittiertone.
Thisisthepreampvoicingsection'spassivelow-frequencyEQfor .
Thisisthepreampvoicingsection'spassivemidrangeEQfor .
Thisisthepreampvoicingsection'spassivehigh-frequencyEQfor .
CH1
CH2 CH3 CH4 HighGain
SoundWizard
CH1 CH2 CH3 CH4
MediumGain LowGain HighGain
SoundWizard
Channel 2
Channel 1 High Gain
Channel2
Channel2
Channel2
Atipfromthedesigner:
Atipfromthedesigner:
20Gain2
12

Atipfromthedesigner:
To help you get acquainted with the amp's fundamental sounds, I recommend that
you set all tone controls to about the center or 12 o'clock position. For higher-gain,
high-volumeleadsounds,yourbestbetistoturntheTrebleknobdowntopreventthe
pickupsand speakers fromgenerating feedback (asettingin the10-to-1o'clock range
isrecommended).
EachchannelisequippedwithadedicatedEQsoyoucantweakitssoundseparatelyto
suityourtasteandthegivensonicscenario.
Though this passive voicing section's controls range is narrower than that of a
comparable active system, its EQ curve is tweaked specifically for its designated
purpose,andwillgiveyousatisfyingresults.
Volume control for Channel 2's preamp section. Use this knob to adjust the volume of
Channel 2's preamp and dial in the desired balance with the other three channels'
levels. Because this knob is located pre effects loop, it also determines the send levels
for both FX loops when Channel 2 is selected. The yellow LED to the right of the knob
lights up to indicate Channel 2 is on. Use the knob (57) on the amp's rear panel to
balanceouttherelativevolumesofHighGainandLowGainmodes.
yellow
Gaincontrolfor Channel 4'spreampsection.This knobdetermines thepreamp's input
sensitivitywhenChannel4isselectedand,byextension,thepreampsignal'ssaturation
level.
hannel 4 has plenty of headroom, so I recommend setting the Gain knob to
somewhere between 8 and 1 o'clock. This will let you dial in impressive sounds with
preamp saturation figuring prominently in the tone. The High Gain function comes in
especially handy in conjunction with Gain settings below 12 o'clock because you can
useittoshapeandaccesstwodistinctlydifferenttones.
24Volume2
BearinmindthatyoualsohavetheSound
(1) button, as well as the two power amp Presence (14) and Depth Punch (15) knobs,
atyourdisposalforshapingthefrequencyrange.
Pressthisbuttontoactivatethepreamp's attheamp.The LEDtothe
right of the Channel 2 Volume knob (24) lights up to indicate Channel 2 is active.
Channel 2 may also be activated via MIDI program change, the ENGL Custom Z-9
Footswitch,oradualfootswitch.
Depending on Gain knob, Gain option (19) and Sound option (1) settings, Channel 4's
gain ranges from massive to borderline ridiculous, which translates to big power
chords and mean leads. Note that Channel 4's midrange is scooped - that is, not as
dominant as Channel 3's - lending Channel 4 a distinctive tone quite unlike the other.
C
Extremely high gain and volume levels in Channel 4 can produce powerful
feedback. Avoid feedback squeals; they can lead to hearing loss and damage
speakers! At higher volumes, back off the Gain, Treble and Presence levels in order to
preventuncheckedfeedback!
25CH2
26Gain4
Channel2
Atipfromthedesigner:
CAUTION:
13

27Bass
28Middle
29Treble
30Volume4
31CH4
32MasterA
33MasterB
Thisisthepreampvoicingsection'spassivelow-frequencyEQfor .
Thisisthepreampvoicingsection'spassivemidrangeEQfor .
Thisisthepreampvoicingsection'spassivehigh-frequencyEQfor .
To help you get acquainted with the amp's fundamental sounds, I recommend that
you set all tone controls to the center or 12 o'clock position. For higher-gain, high-
volume lead sounds, your best bet is to turn the Treble knob down to prevent the
pickupsandspeakersfromgeneratingfeedback(asettinginthe10-to-1o'clockrange
isrecommended).
EachchannelisequippedwithadedicatedEQsoyoucantweakitssoundseparatelyto
suityourtasteandthegivensonicscenario.BearinmindthatyoualsohavetheSound
(1) button, as well as the two power amp Presence (14) and Depth Punch (15) knobs,
atyourdisposal forshaping thefrequencyrange. Thoughthis passivevoicingsection's
controls range is narrower than that of a comparable active system, its EQ curve is
tweakedspecificallyforitsdesignatedpurpose,andwillgiveyousatisfyingresults.
Press this button to activate preamp at the amp. The red LED to the right
oftheChannel4Volumeknob(30)lightsuptoindicateChannel4isactive.Channel4
mayalsobeactivatedviaMIDIprogramchange,theENGLCustomZ-9Footswitch,or
adualfootswitch.
Channel4
Channel4
Channel4
Channel 4
Atipfromthedesigner:
Volume control for Channel 4's preamp section. Use this knob to adjust the volume
ofChannel4'spreampanddialinthedesiredbalancewiththeotherthreechannels'
levels.Becausethisknobislocatedpreeffectsloop,italsodeterminesthesendlevels
for both FX loops when is selected. The red LED to the right of the knob
lights up to indicate is on. Use the knob (59) on the amp's rear panel to
balanceouttherelativevolumesofHighGainandLowGainmodes.
MasterAvolumeknob.Locatedposteffectloops,itcontrolspowerampoutput.The
red LED to the right of the knob lights up to indicate is enabled and
determining the master level. You can also set the master level to 0 ( via
MIDIortheZ-9.Tolearnhowtodothis,seesection36andsection46,page20inthe
chapter.
MasterBvolumeknob.Locatedposteffectloops,itcontrolspowerampoutput.The
green LED to the right of the knob lights up to indicate is enabled and
determining the master level. You can also set the master level to 0 ( via
Channel 4
Channel 4
Master A Amp Mute)
RearPanelFeatures
Master B Amp Mute)
14

MIDIortheZ-9.Tolearnhowtodothis,seesection36andsection46,page20inthe
chapter.
Switches back and forth between the Master A and Master B knobs. The LEDs next to
theknobslightuptoindicatewhichMasterknobisactivetheredLEDfor ,the
green LED for . can also be switched via MIDI program change
ortheENGL .
Here's a nifty option: Use and to set two different power amp levels and
access these as you wish in tandem with the preamp's eight channel and Gain
combinations. You can easily program combinations of different ,
to andLoworHighGain(19)settingstodifferentMIDIpresets.Thenyou
can conveniently access these configurations on stage using a MIDI footboard (for
example, the ENGL Z-9, Z-12 or Z-15). This gives you many variations of the
fundamental sounds for different playing techniques and musical situations.
Channel1orChannel2isyourfirstchoiceforcleanandevengrittierrhythmandlead
work. Take advantage of the preamp saturation in Channels 3 and 4 for power
chordsandleadsatdiversegainandvolumelevels.Tryworkingyourguitar'svolume
knobtoextendyourrangeoftonesandmusicalexpression.IfaMIDIcontrolunitand
controllercommandsareavailable(forexample,theENGLMIDIFootcontrollerZ-15)
you can use the to silence the power amp quickly and conveniently for
shortbreaksortoswapguitars.
RearPanelFeatures
MasterA
Master B MASTER A/B
CustomZ-9Footswitch
Master A B
Master A/B
Channel1 4
Amp Mute
Atipfromthedesigner:
35Write/Copy
Press this button to store the modified setting of a programmable feature to a MIDI
memory slot (generally called a preset). Here's how to distinguish between and
:withtheformeryou'reactuallyprogrammingorwritinganewMIDIpreset,with
thelatteryou'remakinganexactduplicateofanexistingpreset.
ThesystemwillselectaWriteoperationwheneveryoueditaMIDIpreset,thatis,when
you have modified a programmable feature. You'll know that this is the case because
theStatusLEDflashessteadilywhenyoueditoneorseveralprogrammablefeatures.If
you press the button and did not edit a MIDI preset, the system will select . This
means that the given preset becomes the source, and its contents are dumped to
another preset and stored there. Thesystemquits modeautonomously
ifyoudonotselectanewMIDIpresetwithinabout30seconds.
The preset programming process -- the Write command, that is -- is not carried out as
soon as you press the button. Pressing the button merely initiates the process. You
must hold it down for about a second until the Status LED flashes three times in rapid
succession.Thismechanismisdesignedtopreventinadvertentprogramming.Youcan
cancel the programming process at any time before the Status LED first illuminates by
releasing the Write button. Again, the preset will only be programmed successfully if
youpressandholdthebuttonuntiltheStatusLEDflashesthreetimes.
Write
Copy
Copy
Copy
34MasterA/B
When you press this button, the Status LED lights up
continuouslytoindicate isactivated.
You'll have to go through a similar routine to copy a preset once you select a target
preset:WhentheStatusLED extinguishes, thecopy operationis underway andcan no
longer be cancelled. The LED flashes three times to indicate the preset was copied
Copy
15

successfully. You can cancel the copy operation by releasing the key, but only for as
longastheLEDlightsupcontinuously.Seepage27and28f .
willflash inapattern of
fiveshortbursts.
Furtherindicatorfunctions: ;descriptioninsection
ormoredetails
PowerTubeMonitor
IMPORTANTnote;pleasereadandheed
Moregood-to-knowinfo:
:
MIDI preset 1 activates when the amp is powered up. If you want to edit and/or store
other MIDI presets, you must connect a MIDI foot board or another MIDI send device
tothe port (44)anduse thisoutboarddevice toselect the desiredMIDI preset
ontheamp.
Note that the Status LED also indicates the status of components unrelated to
and . The microcontroller runs a short system check after you switch the amp on.
Shouldit findadefect inthe memorychip(EEPROM), theLED
PresstheWrite/Copycopybuttontoconfirmthatyougotthemessage.Onceyouhave
done this, the system will be ready to run, although you may encounter problems
whenattemptingtoselectorstoreMIDIpreset.
The Status LED serves a third display function. As described in section , it indicates
thatnospeakerisconnectedtothepowerampoutputs.
MIDIIn
Write
Copy
36Mute
38StandBy
This red LED lights up to show is engaged, that is, the power amp is
silenced. Activate this mode via (set it to 0), a previously programmed MIDI
preset, a MIDI controller #7 (or #28) command (see chapter 46 to learn more) or by
sendingtheappropriate Z-9 commandtotheSerialAmp ControlPort (47).Deactivate
by setting Standby (38) from to or sending the
appropriate MIDI command to the MIDI In port (44) or via the respective Z-9
command(setting )sendtotheSerialAmpControlPort (47).
When programming MIDI presets,
ensure Standby switch is set to (that is, the power amp is active) if you want this
preset to disable and enable the power amp so the speaker renders your
sound. If the Standby switch is set to 0 during programming, the amp will be muted
when you select this MIDI presets precisely because the function was
enabledduring programming.Therefore thepoweramp willnot boost thesignal and
thesoundwillnotbeaudibleoverthespeaker.
You cannot deactivate to activate the amp via appropriate
programmed MIDI presets, MIDI controller commands or via the Z-9 when is
engagedtoswitchthepowerampoff.YoumustfirstfliptheStandbyswitch.
This blue LED lights up when the ENGL type Z-16 Sound Wizard module has been
installed in the amp's rear panel and enabled via the slide switch (1/SWM) on this
optionaladd-onmodule.
Power amp standby switch: Use this switch to silence (0 position) the amp when you
take longer break. The amp's tubes stay nice and toasty, and the amp is ready to roll
Amp Mute
Standby
Amp Mute 0 Power Amp On
F2-4
On
Amp Mute
Amp Mute
Amp Mute Standby
A very IMPORTANT note; please read and heed:
Note:
38.
38
37SWM
16

immediately when you ramp it back up to full power. activates as soon as
yousettheStandbyswitchtothe0positionandtheMuteLED showsthisstatusby
lighting up. You can easily program the Amp Mute function to MIDI presets to mute
the amp using a simple MIDI footboard. To do this, set the Standby switch to 0 and
starttheprogrammingprocesswiththeWritebutton(35).
When programming MIDI presets, ensure
Standbyisset to (that is,thepoweramp is active)ifyouwant this presettodisable
and enable the power amp so the speaker renders your sound. If the
Standbyswitchissetto0duringprogramming,theampwillbemutedwhenyouselect
this MIDI presets precisely because the function was enabled during
programming. Therefore the power amp will not boost the signal and the sound will
notbeaudibleoverthespeaker.
Donot engage theStandby switch whencopyingwith theWrite/Copy( ) button,as
thislaunchesawriteoperation.ThecontrolsystemtreatstheStandbyswitchmuchlike
afunctionbutton.Ifyouuseittoeditthestoredsettings,theStatusLEDwillflash.
To learn more about this, see section and
intheappendixonpage27and28.
Ifthe ampisinStandbymode,deactivatingtheAmpMutefunctionviatheAmpMute
Z-9 command will not activate it. The same goes for sending MIDI controller #7 (or
#28)commandsandselectingMIDIpresetsprogrammedwith deactivated.
YoumustfirstfliptheStandbyswitch.
Onthe onehand,the amp'ssurveillance systemmonitorsif speakercords areplugged
into (62,63), (64, 65),and (66).If none
of these ports is in use, flipping the Standby switch will not activate the power amp.
Thisensurestheampisnotoperatedwithoutaconnectedload.
In addition, an electronic surveillance system monitors the power tubes. The Status
LED flashes to alert you to a defective power tube, blinking in different patterns to
identifythegiventube.Specifically,itlightsupbrieflyatregularintervals-onceforV1,
twicefor V2,thrice for V3,and fourtimes forV4.Because thetube monitoringsystem
only works when the power tubes are up and running, this indicator is not enabled
untilyouactivatethepoweramp
Amp Mute
On
Amp Mute
Amp Mute
Write/Copy Programming sounds
(Settings)toMIDIpresentsinindividualsteps
AmpMute
Poweramp Outputs 4 Ohms 8 Ohms 16Ohms
IMPORTANT note; please read and heed:
If you want the power amp to be enabled in a MIDI preset, you must program it
withStandbysetto !
Note:
Moregood-to-knowinfo:
On
(36)
35
35
Iftheampispowered
up and the Standby switch is set to On, the Standby circuit is deactivated internally
andtheStatusLEDshowsthisbyflashingrapidly.
(StandbyswitchsettoOn).Pleasereadthefollowing
paragraphforfurtherimportantDetails.
The electronic power amp monitoring system constantly gauges the current flowing
througheach poweramptube. Ifitrises totoohigh alevel the systemshuts down the
giventube.
This can occur when the amp is operated incorrectly (for example, if the impedance is
wrong due to an incorrect speaker load; see page 24 and 25 for permissible loads), at
extremepowerspikes,orwhenatubeisdefective.
Reset this electronic monitoring system by flipping the Standby switch off and on
AnimportantnoteonthePowerTubeMonitor(P.T.M.)system:
17

againafterabriefpause.Whenyoupressthestandbyswitchtoturntheamponagain,
thesystem again measuresthecurrent senttothe tube. Ifitis stilltoo high,thepower
amp must be checked by a service technician, and the tube may have to be replaced if
itisdefective.
Do not flip the Standby switch off and on in short time intervals if the
Status LED indicates a tube failure. Wait around 30 seconds before you engage the
powerampagainafteryouhaveswitcheditoff!
ensurethat theStandBy switch(38)is set toStand By (0position) before
youswitchtheampon.Letthetubesheatupforabout30secondsbeforeyouactivate
thepoweramp.Thisproceduresparesthetubes.
After an extended period of operation and higher ambient temperatures
the amps's chassis can become very hot, therefore avoid touching the rear panel
surfaceandtheventilationgrilleonthetop!
Onpage2and39ofthemanual,you'llfinddiagramsofthefrontandrearpanels.
HEADS UP:
Please note:
CAUTION:
IEC-C14connector
40 ACPowerInlet, )
A tip from the designer:
CAUTION:
CAUTION ALWAYSmakesurereplacementfusesare ofthesame typeandhave the
I suggest you get into the habit of using standby during short breaks. In this mode,
currentisnotpipedthroughthepower tubes, sotheydon'tget as hot (duetothelack
ofanodedissipation)andaresparedconsiderablewear.Theampisreadytorunwhen
youfliptheStandbyswitchbecausethetubesarealreadywarmanddon'trequiretime
toheatup.Forbreaksof20minutesandlonger,Irecommendthatyouswitchtheamp
offinordertoconserveenergy.
There's another function called that is also controlled via the Standby
switch.Youcanuseittoconvenientlysilencethepowerampwhenswitchingortuning
guitars via a MIDI preset. All you have to do is first program the target MIDI preset by
settingtheStandbyswitchto"0"(PowerAmpoff).Thentheampwillalwaysbemuted
whenyouselectthispreset.TheMuteLED(36)indicatesthisfunction'scurrentstatus.
Mains power on/off.
Plugthemainscordinhere.
Make sure you use an intact mains line cord with a grounded plug! Before
you power the amp up, ensure the voltage value printed alongside the mains port is
thesameasthecurrentofthelocalpowersupplyorwalloutlet.
Please also heed the guidelines set forth in the separately included pamphlet,
.
Therearchambercontainsthemainsfuseandthefrontchamberasparefuse.
:
Amp Mute
InstructionsforthePreventionofFire,ElectricalShockandInjury
39Power
MainsConnector(
41MainsFuseBox:
Rear Panel Features
18

same ratings as the original fuse! To this end, please refer to the fuse ratings shown
onthetypepanel.
Please note:
CAUTION:
Please read and heed:
42GroundLiftSwitch
43MIDIThru
44MIDIIn
45 Power Supply For The ENGL MIDI Footcontroller
46MIDIChannel, AmpMute
This switch severs the circuit connecting the amp's internal ground to the wall
receptacle's ground terminal. You can set the switch to when you
haveconnectedasignalprocessororpowerampandwanttopreventthetwodevices'
groundsfromformingagroundloopthatmanifestsinannoyinghumming.
A ground loop is an extraordinary condition. Under ordinary
circumstances, ensure the button is set to to earth the amp to the mains
ground,therebypreventingungroundedlinenoise!
This 5-pin DIN port patches incoming MIDI data from the (44) to any other
connectedMIDIdevice.
This 5-pin DIN port accepts data sent by a MIDI sender (for example, the ENGL MIDI
Z-12, Z-15, or Z-9 foot controllers) or from or routed through another MIDI device.
Switch no. 45 lets you activate the amp's power supply if you have an ENGL
connectedtothisport.
Before you connect any other MIDI footswitch or effects device, always
makesurethatswitchno.45issettotherighttoavoiddamagingthedevice.
This selector activates a MIDI In port power supply for connected ENGL MIDI foot
boards.PowerisfedtotheboardviatheMIDIcircuit.Whentheswitchissettotheleft
position,power isrouted to theMIDI In port'spin 1andpin 2(referto page rpin
assignments). If you choose to use another MIDI foot board, be sure to set the switch
totheright to avoid damaging it.Ifthefootboardyouareusingisdesignedtohandle
phantom power, consult its operating manual to learn how it is wired (that is, which
pins carry its power supply) and what its voltage and current specifications are. If the
voltageandcurrentspecificationsandwiringmatch,youmaysettheswitchtotheleft
topowerthisfootboardviatheMIDIcable.
Note that a MIDI foot board may not draw more than 200
milliamperes of current if you want to power it via this port. You must also check and
verify if this MIDI foot board is able to handle 11 volts of alternating current (AC)! If
you are in any doubt, be sure to consult a specialist, meaning an amp technician or
electronicsengineerwhoearnsalivingwithascrewdriver!
Ground Floated
Ground
MIDI In
MIDI foot
controller
35fo
Use this DIP switch to assign the MIDI channel by which the amp's MIDI system will
receive program change commands and specific MIDI controller commands assigned
tocertainampfunctions.
Your choices are the standard 16 MIDI channels numbered from 00 to 15, as well as
OMNI mode, whereby all MIDI data is received regardless of the MIDI send channel.
MIDIController,
19

ThefollowingtableshowsthespecificchannelandOMNIsettingsofthesmallswitches
labeled1,2,3,4and5onthelargerpiano-typeDIPswitch.
Setting the small switch labeled '6' to ON enables the MIDI controller access capability
forcertainAmpfunctions.
Settingthesmallswitchlabeled'6'toOFFdisablestheMIDIcontrolleraccesscapability
forcertainAmpfunctions.
the small switch labeled '1'
The small switch labeled '6' on the larger piano DIP switch determines if the amp
accepts MIDI commands so that MIDI controllers #7 or #28 can be used to mute it.
Thesecontrollerssend
You can control the programmable functions (1), (16),
(17), (19)and (34)aswellas directlyusingcontroller
MIDI controller access permission set with the small switch labeled '6' on the
larger piano DIP switch:
MIDIController,AmpMute
Sound FX Loop I/II Noise Gate
HighGain MasterA/B AmpMute
MIDI-channel: 1: 2: 3: 4: 5: 6:
OMNI OFFXXXXXXXXXX
CH1 ON OFF OFF OFF OFF XX
CH2 ON OFF OFF OFF ON XX
CH3 ONOFFOFFONOFFXX
CH4 ONOFFOFFONONXX
CH5 ON OFF ON OFF OFF XX
CH6 ON OFF ON OFF ON XX
CH7 ON OFF ON ON OFF XX
CH8 ON OFF ON ON ON XX
CH9 ONONOFFOFFOFFXX
CH10 ON ON OFF OFF ON XX
CH11 ON ON OFF ON OFF XX
CH12 ON ON OFF ON ON XX
CH13 ON ON ON OFF OFF XX
CH14 ON ON ON OFF ON XX
CH15 ON ON ON ON OFF XX
CH16 ON ON ON ON ON XX
As the table indicates, switches between Poly and OMNI
mode.Bearthisin mind forpractical applications,because thisis a fastway togo from
apresetPolychanneltoOMNImodeandviceversa.
anAmpMutecommand when assigneda value of5 or greater.
Avalueof0to4deactivatestheAmpMutecommand,therebyunmutingtheampand
reactivatingatitscurrentMASTERvolumesetting.
You cannot deactivate to activate the amp via an appropriate MIDI
controller#7or#28commandwhen isengagedtoswitchthepowerampoff.
YoumustfirstfliptheStandbyswitch.
Atipfromthedesigner:
Note: Amp MuteStandby
20