Mooer GE300 Operating instructions

How to Use
Mooer Studio for GE300
The Missing Manual

Manual and Illustrations by Steven B. Schweitzer
Some illustrations by Mooer Audio, where noted.
Mooer Studio is a highly capable software
interface to help manage and control the Mooer
GE300 Amp Modeling, Synth and Multi-Effects
unit.
This manual was written to help others
navigate and use the Mooer Studio software
interface after my frustration of finding out there
was no manual for the software. While Mooer
Studio is mostly intuitive, like most software, there
are little secrets and tricks buried within. Knowing
them can make your playing time more productive
and use of the software easier. Finding those tricks
can sometimes be a challenge.
What This Manual Is and Isn’t
This manual is written for the Mooer Studio
software V1.2.0 on a PC platform, and all
instructions contained within will illustrate using
PC-based screen shots. I am not a MAC user and
do not know of the nuances that may be in the
MAC version of Mooer Studio. For the MAC
audience, I am sure this manual can still provide
general guidance on how to use the features within
Mooer Studio.
This manual is designed to accompany the
Mooer GE300 Owner’s Manual, not replace it.
This manual may contain some personal
viewpoints and does not suggest they are the same
opinion of Mooer Audio.
This manual will not provide:
●Instruction on how to use the physical Mooer
GE300 unit itself (refer to the current version
of the Mooer Owner’s Manual)
●Using the Synth Module (this can be an entire
instruction manual in itself)
●Using the MIDI functions (this is highly
dependent on your midi controller and can be
an entire instruction manual in itself)
●Using Tone Capture for Guitar mode,
amp/stomp box mode or IR mode
There are plenty of excellent videos on YouTube®
which cover the above topics in greater detail,
including any additional equipment you many
need (such as microphones and pre-amps).
Expectations of You, the Reader
The manual is written with the expectation that
the user has fundamental knowledge of his/her
computer operating system such as right-clicking,
left-clicking, saving files, how to find them,
unzipping files, etc. For example, when the
instructions say to unzip a file and double-click it
to run, no further instructions will be given on
how to double-click or unzip files. Likewise with
the instruction to ‘click-and-drag’. These are
fundamental knowledge requirements of your
operating system and are assumed you already
know. If you don’t know how to perform
operating-system level tasks, please Google how
to do so.
Introduction
How to use
Mooer Studio for GE300
The Missing Manual

Using Mooer Studio for GE300 - The Missing Manual
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Contents
Section I - Installing Mooer Studio
Downloading Mooer Studio........................................................................................................................5
Installing Mooer Studio ..............................................................................................................................5
Connecting the GE300 Unit to a Computer ..............................................................................................7
Starting the Mooer Studio Software...........................................................................................................7
Troubleshooting Mooer Studio Start-up....................................................................................................8
Section II - Using Mooer Studio
The Mooer Studio Interface........................................................................................................................9
ŒThe Preset Control Block........................................................................................................................10
Organizing Presets..................................................................................................................................10
Moving Presest Around..........................................................................................................................10
Backing Up Presets.................................................................................................................................11
•The Signal Chain Control Block............................................................................................................12
Re-Ordering the Signal Chain................................................................................................................12
Signal Chain Basics................................................................................................................................13
Conventional Order of Effects................................................................................................................13
Order of Effects in Mooer Studio...........................................................................................................13
Effects Loop and XLR Out......................................................................................................................14
ŽThe Amp/Cab/FX Selector Block...........................................................................................................15
•The Parameters Block.............................................................................................................................16
•The Preset Identifier Block.....................................................................................................................16
‘Expression & Trails Control Block.........................................................................................................17
Finding the Trails Settings.....................................................................................................................17
’Systems Control Block.............................................................................................................................18
FX Loop...................................................................................................................................................18
Looper .....................................................................................................................................................18
System......................................................................................................................................................19
MIDI........................................................................................................................................................21
CTRL.......................................................................................................................................................21
Assigning Effects to Foot Switches.........................................................................................................21
Assigning Multi-Effects to a Single Foot Switch....................................................................................22
“File Control Block...................................................................................................................................26
GLB-EQ...................................................................................................................................................23
EXP..........................................................................................................................................................24
MERGE...................................................................................................................................................25
BPM.........................................................................................................................................................26

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CONTENTS
Section III - Smart Ways to Use Your GE300
Creating Custom Presets - A Suggested Workflow....................................................................................27
Creating A Reusable Preset The Smart Way.............................................................................................27
Making Your Foot Switch Colors Mean Something..................................................................................27
How to Import a Custom Speaker Cabinet IR...........................................................................................27
There’s More than One AUX-IN!...............................................................................................................28
Suggestions for Future Releases of Mooer Studio......................................................................................29
1
2
3
4
5
6
7
8
The main Mooer Studio graphical user interface for the GE300.

Using Mooer Studio for GE300 - The Missing Manual
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Downloading Mooer Studio
As of the date of this publication, the Mooer
Studio software V1.2.0 can be found at:
http://www.mooeraudio.com/download.html.
Download and save the zip file version suited
to your computer (PC or MAC). While you are
at it, download the GE300_Manual file in your
preferred language. It will contain some helpful
instruction on using the physical GE300 unit.
Follow the diagrams on the preceding page. Be
sure to remember where you saved the files on
your computer for future use!
Refer to the figures in the shaded column to the
right which illustrate the screen shots to download
Mooer Studio software.
Installing Mooer Studio
To unzip the Mooer Studio software, locate and
double-click the setup file to run it. In this
example the file name is pointed out below with a
red arrow.
Once the installation file starts, the sequential
screen shots on the following page will appear.
Follow the prompts on each installation screen
to proceed.
(eg: click on each button to continue
the installation.
Section 1
Installing Mooer Studio
ABOVE: Visit
http://www.mooeraudio.com/download.html to
download the necessary version for your computing
platform (PC or MAC).
BELOW: Choose the most current version of the
software. At the time of this document, Version
1.2.0 for the PC or version 1.2.1 for MAC.
Downloading Mooer Studio Software

Using Mooer Studio for GE300 - The Missing Manual
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Connecting the GE300 Unit to a
Computer
If you purchased your GE300 unit new, it came
with a USB-A to USB-B cable. The USB-A end is
the typical USB cable connection the world is
familiar with. The USB-B end is the notched
square connection that commonly is used for
printers, scanners and external storage devices.
Starting the Mooer Studio
Software
1. Turn on the GE300 unit with the rocker switch
20, shown in Figure A. Allow the unit to cycle
through its initialization process indicated by
s series of flashing lights and dancing colors.
NOTE: Don’t start the Mooer Studio software
until the unit has completed its start-up
initialization.
2. Ensure your computer and the GE300 unit is
connect together via the USB-A/USB-B cable.
3. Double click on the Mooer studio icon If the
computer and the GE300 unit see each other,
a connection progress bar should show, like
the figure below. It will take a minute or two
for the Mooer Studio software and the GE300
unit to sync together. Be patient.
4. Upon a completed synchronization cycle and
connection, The Mooer Studio interface
should reveal the main interface, shown below.
ABOVE LEFT: USB-A connection (to the PC)
ABOVE RIGHT: USB-B connection (to the GE300 Unit)
Figure A - The USB-B connection goes into receptacle 17
on the GE300 unit shown below.

8
Troubleshooting Mooer Studio
Start-up
On occasion, you may experience a connection
error like the dialogue box below.
Most often it is a physical cable connection
error - ensure the USB-A/USB-B cable is securely
in seated at both ends.
Other issues you may experience:
▪Sounds simple, I know, but check the power on
the GE300 unit. Is it on? Many times I simply
forget to turn on the GE300 unit in my mad
excitement of playing the guitar.
▪Old version of Mooer Studio software. Ensure
the latest version is installed.
▪Too many resources being used by the PC. Shut
down some of the running applications and
retry.
SECTION I - Installing & Using Mooer Studio

Using Mooer Studio for GE300 - The Missing Manual
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The Mooer Studio Interface
The main graphical-user interface (GUI) of
Mooer Studio V1.2.0 is comprised of eight (8)
control blocks (see Figure 1).
Control Blocks 1-4 are dependent upon each
other - meaning if something changes in one
block it will affect options in another.
Control Blocks 5-8 are independent of other
control blocks. Changes to or usage of these
blocks are global in nature and are not reliant
upon other control block settings (there are
some minor exceptions, covered later).
While the GUI is not the most visually
appealing in the world of GUIs these days, it is
very functional and highly efficient. The rest of
this section will cover each of the control blocks
in more detail.
NOTE: you cannot use Mooer Studio in stand-
alone mode. You must be connected to the GE300
unit for Mooer Studio to load and run.
ŒPreset Selection Block
Allows the selection of a single preset at a
time, to edit or play. There are 256 Preset
locations to use. Sixty-Four (64) of them are
pre-populated with sample presets from the
factory.
Section II
Using Mooer Studio
1
2
3
4
5
6
7
8
Figure 1 - The Mooer Studio Graphical User Interface, illustrated with the eight (8) primary control blocks.

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•Signal Chain Control Block
It all starts here - this block provides the
ability to order and re-order the signal chain or
to select an individual amp/cab/FX to edit with
precise tonal detail. Edits are done via Blocks 3
and 4.
ŽAmp/Cab/FX Selector Block
Depending on the amp, cab or effect chosen
in Block 2, the corresponding pull-down
selection list is provided offering many choices.
For example, if the DS/OD effects pedal is
selected in Block 2, a list of overdrives,
distortions and fuzz stomp boxes is provided.
•Parameters Block
This is a context-sensitive block depending
upon the options selected in Blocks 2 and 3, the
corresponding controls are displayed and can be
edited and saved. For example, if the DS/OD
effects pedal is selected in Block 2, and the pedal
selected in Block 3 is DS/OD #2: 808 (clone of
the Ibanez Ts808), the corresponding controls
for the Ibanez Ts808 clone are displayed in Block
4.
•Preset Identifier Block
This block simply indicates the preset
location and name of the preset being worked
upon. There are no interactive options to select in
this Block.
‘Expression & Trails Control Block
When changes are made to the on-board and
external expression pedals, and changes to Trails
(on:off) the status is displayed here. There are no
interactive options to select in this Block.
’System Controls Block
Options in this block provide global preset
and system-wide controls.
“File Control Block
As the options indicate, this is where you can
save, import, export and check for software
updates.
ŒThe Preset Control Block
The simplest task to achieve with Mooer Studio
is to select a preset and begin using it. Instead of
using the up/down foot switches on the GE300,
you can choose a preset by scrolling up and down
the list and clicking on a preset to choose it. It’s
not ideal for live stage performances, but handy
in a studio setting.
Organizing Presets
One of the first things I did when I got my new
unit was to carefully evaluate each factory preset
and decide if I wanted it for future use or delete it.
I do not play shredder-style guitar, so I deleted all
the ultra-high gain presets and focused on the rest.
I then moved them around in an organization
method that best suits me. I used the following
organizational structure, knowing I have 256
preset locations to work with.
▪Bank 0-10 - Amp-based presets
(clean and overdriven tones from various amp/cab
combinations that suit my playing style)
▪Bank 11-20 - Presets for Live Gigs
(presets which match set lists in order, all in a focused
few banks that minimizes the foot switch travel to access
them)
▪Bank 21-30 - Song-specific presets
(presets for songs which require unique parameters;
stored for easy access and I can move around as necessary)
▪Bank 31-40 - Song-specific presets
(ditto above)
▪Bank 41-50 - Original Patch Storage
(original factory presets which have unique settings I can
learn from in the future, or use as a starting point to
create my own preset later)
▪Bank 51-60 - Original Patch Storage
(ditto above)
Moving Presets Around
You are probably wondering how to move a
preset from one location to another. Warning: it’s
SECTION II - Using Mooer Studio

Using Mooer Studio for GE300 - The Missing Manual
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tedious. This common function is conspicuously
absent from the current version of Mooer Studio.
So we have to manage presets like ancient
computer programmers used to do with storage
vairiables in the first generation native languages
like Assembler and Cobol. (This dates me.)
The process to move a preset to a new
location is as follows (refer to Figure 2a):
1) Locate and ensure a new location has nothing
stored in it that you may want later.
2) Click on the preset location you wish to move.
3) Click the SAVE button at the top of the screen.
4) In the Name: field, enter a new name for the
preset, if desired.
5) In the Number: dropdown field, choose the new
location for the preset.
6) Click the Save button in the “Save” dialog box
to save the preset to its new location.
Phew! That’s 6 steps to perform in order to
move a preset to a new location. But haven’t we
forgot something? What about the old preset
location - the preset we just moved is still in the
its old location! Nothing happens to it until it is
overwritten with a new preset or wiped clean with
a ‘blank’ or a ‘default’ preset that contains
common effects you may use over and over. Refer
to the section later in this book entitled Creating
A Reusable Preset the Smart Way for a nifty idea
on how to populate unused preset locations with
a base preset loaded with all the stuff you like to
use on a regular basis.
Backing Up Presets
Mooer Studio allows you to save one preset at
a time to your hard-drive as a back-up or to share.
Saving one preset at a time can be a time-
consuming chore if you want to back-up all your
presets at once. (See my wish list to Mooer Audio
at the end of this document). For now, there is no
way I can find to back-up all presets at once - even
by trying to connect into the GE300 from my PC
directly. Each preset must be exported to your PC
one at a time.
For example, I own a Fender Blues Junior amp.
I swapped out the stock Jensen C12N speaker for
a Celestion G12H-55 Heritage. I purchased and
loaded the IR (impulse response) for the Celestion
G12H-55 speaker for the GE300, instead of
creating my own with the GE300 unit. (I cover
loading IRs later in this document) I then created
a custom preset on the GE300 to mimic my
All Mooer GE300 presets are saved with the preset location as the prefix and ‘.mo’ as the suffix.
Figure 2a - This screen shot illustrates copying Preset #21D (Move Example) from preset location 21D to location 22A.

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physical amp and speaker, along with selected
effects pedals I like to use.
Figure 2b illustrates the dialogue box shown
when I save the preset to my hard-drive. Once
saved, it can be shared or archived as a backup.
NOTE: If I shared my custom Fender Blues Jr
preset, the recipient would need the Celestion
G12H-55 IR too. Since I purchased the IR, there
are redistribution limitations which state I can only
use the IR for my personal use. Hence, do not share
presets that embed 3 party IRs, unless of course,
you make your own IRs with the GE300.
•The Signal Chain Control
Block
Once you have chosen a preset to work with,
the next block to focus on is the Signal Chain
Control Block (Figure 3). It is here that you can
move amps, cabs and effects around to your liking.
This is one of the great powers of a modeling and
effects box like the GE300.
Re-Ordering the Signal Chain
Its quite easy to reorder the signal chain by
clicking, dragging and dropping. Click on an
effect, hold down the mouse button and drag the
effect to the desired location. The replaced effect
will move to the location left vacant by the effect
you just moved. There are a few things to note
when re-ordering amps, cabs or effects:
●The Synth processor must stay in the very first
slot in the signal chain - it cannot be moved
●You can do some crazy things like place the
cab before the amp. Sounds silly, doesn’t it?
In a modeling world you can do that, but in
the real world you will get literally nothing out
of placing a cab before an amp.
Figure 2b - The save dialog box for saving a preset to your hard-drive.
Figure 3 - The Signal Chain Control Block (Block 2) with 14 effect positions.
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Using Mooer Studio for GE300 - The Missing Manual
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●The TONE CAP effect position is rarely used by
most GE300 owners, so its best to put it at the
end of the signal chain to get it out of the way.
For those who use the tone capture for a guitar,
for instance, will want to move it somewhere
else in the signal chain that makes sense, like
nearer the beginning.
Signal Chain Basics
With an amp and effect modeler like the
GE300, it is easy to make unconventional changes
to the signal chain to hear what the outcome might
sound like. To do this with a traditional pedal
board would take extraordinary time: unplug the
stomp boxes, move them around, re-affix them to
the board, re-apply the power supplies and give it
a whirl. Don’t like the sound? Rinse, repeat.
For this reason, an integrated effects processor
like the GE300 is ideal for experimenting. Let’s
review some signal chain basics to help you design
your own signal path.
Conventional Order of Effects
While the list below can be debated, the order
as follows is commonly used as a baseline for
creating a signal chain path.
(GUITAR IN > CLEAN SIGNAL)
1. TUNER
2. EQ
3. WAH/AUTO-WAH
4. COMPRESSOR
(BOOSTERS and GAIN)
5. BOOST or DRIVE or OVERDRIVE
6. DISTORTION
7. FUZZ
(NOISE SUPPRESSION)
8. NOISE GATE
(MODULATION)
9. FLANGER or PHASER or PITCH SHIFT
10. CHORUS or ENVELOPS or TREMOLO or
VIBRATO
(DELAY AND REVERB)
11. DELAY
12. REVERB
(VOLUME)
13. VOLUME PEDAL
▪Place effects that require a clean signal first
▪Then place signal boosters and gain next
▪Then use a noise gate to take out some of the
“dirty” noise that boosters and gain can give
▪Then add in modulation to a cleaned-up
driven signal
▪Then add delay
▪And finally add reverb, as you’ll find that some
modulation effects and certainly delay will add
a hint of reverberation already. Usually not
much reverb is needed for a heavily modified
signal.
▪After all that, place your volume up/down
pedal last to control the total level of output
without affecting the signal processed in the
chain. Well, you might say “that’s what I use
my volume knob on my guitar for” - that
works too - sort of. Volume knobs on guitars
can tend to roll-off mids or high frequencies
when dialed down, so you are affecting the
beginning of the signal chain right away. If
that is your preference, which it is for some,
then you are all set! Otherwise, using a volume
pedal at the end of it all is a clean way to
control volume output without affecting
tonality.
Order of Effects in Mooer Studio
We have to think about the order of effects a
little bit differently when using the GE300. There
are 14 effects positions to work with (Figure 5),
but only 8 give us total control. Let’s explore…
Since we cannot move the Synth effect, it stays
in position #1. That leaves us with 13 positions to

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work with. The last position is occupied by the
Tone Capture feature; now we are left with 12
positions. (I moved the Tone Capture option to the
last position since it is rarely used - more on how to
move positions later.)
With the GE300, two of the remaining 12
positions are used by an Amp simulation and a
Cab simulation. That leaves 10 positions
remaining. Another two are used by a dedicated
wah pedal and a dedicated volume pedal. And yet
another two are used by dedicated noise
suppression and EQ. That leaves the final 6
positions to add stomp box effects at discretion.
But there are ways around that limitation, as we
will explore in a moment.
Effects Loops and XLR Out
One way to get around the perceived limitation
of having 6 onboard stomp box locations is to
insert your own physical stomp box collection
anywhere within the Mooer GE300 signal chain.
This can be accomplished by connecting your
physical stomp boxes to the effects send/return
jacks (23) on the backside of the GE300 unit. See
Figure 6.
Then, one of the least documented and under-
appreciated features of the GE300 can be used: the
ability to insert an external effects loop any where
within the GE300 signal chain. This is done by
moving the rather small Effects Send/Return icons
anywhere in between the effect positions in the
GUI. See Figure 7 for examples of what the circled
icons look like.
Figure 4 - Effects Send/Return input jacks 23
Figure 6 - Effects Send/Return, XLR and Output Icons in
the Mooer Studio GUI.
Figure 5 - There are 8 truly assignable stomp box effect positions.
XXX X
X X X X
Figure 7 - Effects Send/Return, XLR and Output Icon
descriptions. (Source: Mooer GE300 Owner’s Manual)
SECTION II - Using Mooer Studio

Using Mooer Studio for GE300 - The Missing Manual
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For example, let’s say you prefer your favorite
series of overdrive and distortion pedals that the
GE300 cannot replicate. Connect them into the
physical effects send/return jacks and with your
mouse move the small “curly” triangle icons to
anywhere in-between two effects positions within
the Mooer Studio GUI. The GE300 will send the
signal to your pedal board where you told it to do
so, and expect to see the signal return, again, where
you told the GE300 to expect it. You don’t have
to “send” the signal and “return” it to the same
location in your signal path on the GE300. See
Figure 8a for an illustration of placing the send
and return icons for effects processing.
Clicking on the FX LOOP button in Block 7 -
System Controls, turns the effects loop on or off.
When it is on, the icon turns orange-yellow.
FX Loop
Within the option Loop Mode , are two
important choices: Serial or Parallel (see Figure
8b). Choosing Serial mode sends the signal out to
the FX Loop where the Send Icon is placed in the
signal chain. The signal is processed by the
external effects and sent back into the GE300
signal chain where the Return icon is placed. All
effects on the GE300 signal chain are bypassed
between the two Send/Return icons. The opposite
is true for Parallel. The signal is split at the Send
icon and is processed by both the external FX loop
and the internal GE300 signal chain, being merged
back together at the point of the Return icon.
Most likely at this point, you can see the
advantages of both.
ŽThe Amp/Cab/FX Selector
Block
Figure 8a - The effect send icon has been positioned just after the Synth and before Comp to “send” a clean signal. It is
then processed by the external FX loop and received back in after FXB (Modulation, in this case) and before Delay. This
will bypass everything in between the two markers, including the amp and cab selections.
Figure 8b - When the FX LOOP option in the System
Control Block is selected, the menu options below appear.
Loop Mode Serial or Parallel have dramatic effect to how an
FX LOOP is processed.

16
The Amp/Cab/FX selector block requires two
inputs to give proper context-sensitive results.
The inputs are: a) a preset must be chosen in
Block 1, even if blank, and b) an effects position
must be chosen in Block 2, e.g. - the DS/OD effect
position.
Once the prerequisites are in place, the drop-
down options for the Amp/Cab/FX become
context sensitive and only show options relative
to the effects position chosen.
For example, if I have selected the DS/OD pedal
position to work with, only DS/OD pedal options
will show in the drop-down for Block 3. Likewise,
if I have chosen the Amp position in Block 2, only
amps will show in the drop-down list in Block 3.
That’s it, pretty simple.
•Parameters Block
Like Block 3 (Amp/Cab/FX Selector), the
Parameters Block is context-sensitive based
upon the options selected in Blocks 2 and 3.
Again, for example, if the DS/OD effects
pedal is selected in Block 2, and the pedal
selected in Block 3 is DS/OD #2: 808 (clone of
the Ibanez Ts808), the corresponding controls
for the Ibanez Ts808 clone are displayed in the
middle of the screen (Block 4). See Figure 9.
This manual will not go into great detail
about each parameter for all 272 amps, cabs and
effects. That’s just too much work! It is
assumed you will know about the various
parameter controls for the amps, cabs and effects
you choose. If not, just experiment with them -
there’s nothing to loose!
Figure 9 - The DS/OD effects position is selected, indicated by the yellow outline around the position, and the Ibanez Ts808
pedal emulator is chosen in Block 3, indicated by the red arrow. The result is the controls for the 808 are displayed in the
middle of the GUI.
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Using Mooer Studio for GE300 - The Missing Manual
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•Preset Identifier Block
This block simply indicates the preset
location and name of the preset being worked
upon. There are no interactive options to select in
this Block.
‘Expression & Trails Control
Block
Block 6 is a status block - it indicates the
status of trails and what is assigned to the on-
board expression pedal (EXP1) and the optional
expression pedal (EXP2). Working with
expressions pedals are covered later in this
document.
For now, let’s focus on trails. What are trails?
In the old days of time-based multi-effects signal
processors, if you were to switch between time-
based effects, presets or patches the signal
processing would stop for the current signal flow
and begin processing the new signal path. What
happened in-between this micro-second lapse
between patches was a audible void and stark
transition from one to another. Time-based
effects are primarily reverb and delay. With the
Mooer GE300 and many other leading multi-
effects processors today, you can optionally turn
on “trails” so that the previous time-based signal
chain lingers on as you go to your new preset.
Once you generate a signal in your new signal
path ( by strumming the guitar for example), the
trail is replaced as the new signal takes over.
Trails “on” creates a seamless audible transition
between presets. I typically turn on trails for
most all presets that use reverb and delay. Why
not?
Finding the Trails Settings
Not all reverb and delay effects on the GE300
offer trails as a setting option.
Delays which offer the trails setting are:
▪Digital Delay
▪Analog Delay
▪Dynamic Delay
▪Real Delay
▪Tape Delay
▪Mod Delay
Figure 10a - The Spring reverb parameters options. The trails setting is included but not readily visible until you click
either one of the double arrows on the slide bar.

18
▪PingPong Delay
Reverb effects which offer the trails setting are:
▪Room
▪Hall
▪Plate
▪FI-Reverb
▪Swell Reverb
▪Spring
▪Mod
Finding the trails setting can be tricky. Some of
the setting parameters for an effect can be
extensive, spanning more than what the space in
Block 4 - Parameters, will allow in one screen.
Let’s look at the Spring Reverb effect, for
example - it’s a common reverb to use. It offers a
trails option, but it isn’t readily visible. See Figure
10a. Click on either double arrow on ends of the
slide bar to access more options, including the
trails option. See Figure 10b.
NOTE: if you choose Trails:ON, the effect will
be moved to the END of the signal chain by default
and you cannot move it from there.
As for the EXP1 and EXP2 settings, we will
cover those in the next section, 7 - Systems
Controls Block.
’System Controls Block
The Systems Control Block contains 8
functions:
1. FX Loop
2. Looper
3. System
4. MIDI
5. CTRL
6. GLB-EQ
7. EXP
8. BPM
This section will cover all of the above except
for the MIDI functions. MIDI functions are highly
dependent on your specific midi controller and
this topic can be an entire instruction manual in
itself.
FX Loop
In section Effects Loops and XLR Out, we
discussed how to connect and use an external
pedal board (via an effects loop) with the GE300.
Clicking on the FX Loop option turns the
effects loop on or off. When it is on, the icon
turns orange-yellow FX Loop .
SECTION II - Using Mooer Studio
Figure 10b - The Spring reverb parameters options. The trails setting is included but not readily visible until you click
either one of the double arrows on the slide bar.

Using Mooer Studio for GE300 - The Missing Manual
19
Looper
The Looper option allows you to save a loop
you have created or load a loop for additional play
and editing. This option can be handy in saving
a loop you have created that isn’t entirely
complete, so that you can dub and overdub at a
later date. See Figure 11.
Importing a loop file is as easy as clicking on
LOOPER then the IMPORT button and
choosing the file you wish to load. NOTE: all
looper files must be in a .wav file format. The
import dialogue box will show progress as a
percentage.
When the import is finished, a dialogue box
will appear indicating the import was successful.
Exporting a loop file is just as easy as
importing. Click on LOOPER then the EXPORT
button. A filename dialogue box will open
allowing you to name the file and choose the
destination. The file export progress will be shown
as a percentage complete. Once complete, a
dialogue box will appear indicating the export was
successful.
The import and export process is not speedy,
have patience as the processes work.
System
The SYSTEM option allows you to make
changes at the preset and global level. See Figure
12.
Figure 12 - The SYSTEM control box allows for changes to
a preset and for global settings.
Figure 11 - Clicking the Looper button on the Systems
control bar reveals an import/export option.

20
INPUT Section
The Input Level slider allows you to apply a
volume reduction or gain to all of the inputs on
the back of the physical GE300 unit. It’s best to
keep this at the default 0dB unless you have a very
weak or strong input signal that requires
adjustment.
OUTPUT Section
The Output pull-down menu offers two
selections: XLR or Output. Output is selected in
Figure 13. Choosing Output controls the 1/4” out
levels noted by 15 and choosing XLR controls the
XLR out levels noted by 16 in Figure 13. Output
and XLR is used to send processed signal to a
powered amp or a mixing board. Most hobby
musicians would send the signal out to a guitar
amp with neutral tone settings for local
amplification. In this case, choose Output and
send the signal to the amp via a 1/4” line cable
from the left (mono) output jack 15.
The Level option is used to adjust the output
gain. The Output Mode has four options to
control stereo output for L/R output:
1. Dry/Effect
2. Effect/Dry
3. Dry/Dry
4. Effect/Effect
If you do not use stereo output and send a
mono signal to an external amp, you have two
choices: send a dry signal (option 1 or 3) or send
an effect (wet) signal (option 2 or 4). For mono
signal output, the Pan option is irrelevant. For
stereo signal output, Pan allows you to adjust the
signal from left to right. Most often, the setting is
best kept the center setting.
The GE300 offers simple controls for USB
Audio out, used to send signal out to a recording
device, like a computer running a DAW (Digital
Audio Workstation).
Audio Mode: Re-Amp or Normal is used to
send a signal that is going to be amplified further
or send a signal that is normal, meaning no further
amplification will be applied. If you go direct into
your DAW, Normal should be selected.
Right Out and Left Out: similar to the settings
in Output Mode, you can choose if you want a
Direct (dry) or Effect (wet) signal. My Opinion: I
am not sure why Mooer software engineers chose a
pull-down menu selector in the OUTPUT section
to select wet/dry mixes and radio buttons in the
SECTION II - Using Mooer Studio
Figure 13 - The Output System menu option offers controls
for 1/4” outs (15) and XLR outs (16). Source: Mooer GE300
Owner’s Manual.
Figure 14 - The USB connection jack (17) is required to
connect your PC to the Mooer Studio software and/or a
DAW. Source: Mooer GE300 Owner’s Manual.
Other manuals for GE300
4
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