digi-tech RP355 User manual

1
Modeling
Guitar Processor
Owner’s
Manual

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Table of Contents
Section One - Introduction
Getting Acquainted.......................................................... 1
Included Items .................................................................. 1
About the RP355 ............................................................. 1
Performance Mode ....................................................... 1
Bypass Mode .................................................................. 1
Tuner Mode..................................................................... 1
Tone Library (Knob 1).................................................. 2
Effects Library (Knob 2) ..............................................2
Effects Level (Knob 3)..................................................2
Amp Gain (Knob 4) ...................................................... 2
Amp Level (Knob 5) ..................................................... 2
Master Level (Knob 6) .................................................2
X-EditTM Editor/Librarian............................................. 2
Presets ............................................................................. 2
Create Your Sound in Three Easy Steps..................... 3
A Guided Tour of the RP355 ........................................ 4
Front Panel ..................................................................... 4
Rear Panel....................................................................... 7
Getting Started................................................................. 8
Making Connections........................................................ 8
Mono Operation - Amplifier ...................................... 8
Stereo Operation.......................................................... 8
Applying Power ..............................................................10
Section Two - Editing Functions
Editing/Creating Presets ...............................................11
Storing/Copying/Naming a Preset..............................12
Section Three - Models and Parameters
About the Models..........................................................13
Model Definitions ..........................................................13
Pickup ...............................................................................13
Wah...................................................................................13
Compressor ....................................................................14
Distortion ........................................................................14
Amplifier...........................................................................16
Cabinet.............................................................................17
EQ......................................................................................17
Noise Gate/Auto Swell.................................................18
Chorus/FX.......................................................................18
Chorus...........................................................................18
Flanger ...........................................................................19
Phaser ............................................................................19
Vibrato............................................................................19
Rotary Speaker ............................................................20
VibroPan.........................................................................20
Unicord Uni-VibeTM ....................................................20
Tremolo/Panner............................................................21
Envelope Filter .............................................................21
DOD FX25...................................................................21
AutoYaTM ........................................................................21
YaYa™.............................................................................22
SynthTalkTM....................................................................22
Step Filter......................................................................22
DigiTech Whammy™..................................................23
Pitch Shift ......................................................................23
Detune...........................................................................23
Harmony Pitch Shifting ..............................................24
Boss®OC-2 Octaver..................................................24
Delay .................................................................................24
Reverb ..............................................................................25
Section Four - Other Functions
Phrase Looper ................................................................26
Drum Machine................................................................26
Aux Input.........................................................................27
Learn-A-LickTM Mode....................................................27
Using Learn-A-Lick........................................................27
Expression Pedal ............................................................28
LFOs..................................................................................28
Factory Reset..................................................................28
Expression Pedal Calibration ......................................29
Section Five - Appendix
Specifications...................................................................30
Expression Pedal - Assignable Parameters...............32
Tone Library....................................................................33
Effects Library.................................................................33

Warranty
We at DigiTech®are very proud of our products and back up each one we sell with the following
warranty:
1. The warranty registration card must be mailed within ten days after purchase date to validate this
warranty.
2. DigiTech warrants this product, when used solely within the U.S., to be free from defects in materials and
workmanship under normal use and service.
3. DigiTech liability under this warranty is limited to repairing or replacing defective materials that show
evidence of defect, provided the product is returned to DigiTech WITH RETURN AUTHORIZATION,
where all parts and labor will be covered up to a period of one year.A Return Authorization number may
be obtained from DigiTech by telephone.The company shall not be liable for any consequential damage as
a result of the product’s use in any circuit or assembly.
4. Proof-of-purchase is considered to be the burden of the consumer.
5. DigiTech reserves the right to make changes in design, or make additions to, or improvements upon this
product without incurring any obligation to install the same on products previously manufactured.
6. The consumer forfeits the benefits of this warranty if the product’s main assembly is opened and tam-
pered with by anyone other than a certified DigiTech technician or, if the product is used with AC voltages
outside of the range suggested by the manufacturer.
7. The foregoing is in lieu of all other warranties, expressed or implied, and DigiTech neither assumes nor
authorizes any person to assume any obligation or liability in connection with the sale of this product. In
no event shall DigiTech or its dealers be liable for special or consequential damages or from any delay in
the performance of this warranty due to causes beyond their control.
NOTE:The information contained in this manual is subject to change at any time without notification.
Some information contained in this manual may also be inaccurate due to undocumented changes in the
product or operating system since this version of the manual was completed.The information contained in
this version of the owner’s manual supersedes all previous versions.
Disclaimer:AutoYa, DigiTech, DOD, Death Metal, Johnson Amplification, Grunge, Lexicon, Multi Chorus,
Whammy, and YaYa are trademarks of Harman International Industries, Inc. Other product names modeled
in this product are trademarks of their respective companies that do not endorse and are not associated or
affiliated with DigiTech or Harman International Industries, Inc.They are trademarks of other manufacturers and
were used merely to identify products whose sounds were reviewed in the creation of this product.
Manufacturer’s Name: DigiTech
Manufacturer’s Address: 8760 S. Sandy Parkway Sandy, Utah 84070, USA
declares that the product:
Product name: RP355
Product option: all (requires Class II power adapter that conforms to the requirements of
EN60065, EN60742, or equivalent.)
conforms to the following Product Specifications:
Safety: IEC 60065 (7th ed. 2001)
EMC: EN 55013 (2001 + A1)
EN 55020 (1998)
Supplementary Information:
The product herewith complies with the requirements of the Low Voltage Directive 2006/95/EC and the EMC
Directive 2004/108/EC.
Vice-President of Engineering
8760 S. Sandy Parkway
Sandy, Utah 84070, USA
Date: January 02, 2009
European Contact: Your local DigiTech / Johnson Sales and Service Office or
Harman Music Group
8760 South Sandy Parkway
Sandy, Utah 84070 USA
Ph: [phone]
Fax: [phone]

1
Section 1 - Introduction
Getting Acquainted
Congratulations on your purchase of the RP355. You now have an incredibly advanced mod-
eling guitar processor that can keep up with your creative impulses and even increase them.
Armed with DigiTech®’s patented AudioDNA2®custom audio DSP chip, the RP355 gives you a
huge selection of tones and effects, right at your fingertips.When you easily dial up a tone or
effect from the Tone Library or the Effects Library, you’ll appreciate the accuracy in each model,
and the dynamic interaction in each tone. Add USB support for computer recording with the
included Cubase®LE 4 software and a built-in drum machine, and you have the RP355: the key
to unlock your creative potential.
Included Items
Before you get started, please make sure that the following items have been included:
 •RP355
 •Cubase®LE4RecordingSoftwareDVD
 •PS0913BPowerSupply
 •WarrantyCard
The utmost care was taken while your RP355 was being manufactured. Everything should be
included and in perfect working order. If anything is missing, contact the factory at once. Please
help us become acquainted with you and your needs by sending us your completed warranty
card or registering online at www.digitech.com. It is your safeguard should a problem arise
with your RP355.
About the RP355
Stompbox Footswitch Mode
The RP355 includes a very convenient Stompbox Footswitch mode, where the Up, Down, and
Amp A-B footswitches function as on/off switches for the Distortion, Chorus/FX and Delay ef-
fects. To enable Stompbox Footswitch mode, follow these steps:
From the preset display, press the UP and AMP A-B footswitches simultaneously. The display will
read STOMP briefly indicating Stompbox footswitch mode has been enabled. The DOWN, UP,
and AMP A-B footswitches will now turn Distortion, Chorus/FX, and Delay effects respectively
on and off in the current preset. Note:While Stompbox footswitch mode is active, you cannot
navigate through the RP355’s presets, nor can you change the Amp A/B channels in the current
preset.
To exit Stompbox footswitch mode and return to Preset footswitch mode, press the UP and
AMP A-B footswitches simultaneously again. The display will read PRESET briefly indicating
Preset footswitch mode is now active again.
Performance Mode
When you first apply power to the RP355, it powers up in Performance mode. Performance
mode provides access to all of the presets within the RP355 via the Up and Down Foot-
switches. The AmpA/BFootswitch toggles between two amp channels for the selected
preset. Knob 1 selects a tone from the Tone Library, Knob 2 selects an effects chain from the
Effects Library, Knob3 adjusts the Effects Level, and Knob 4 adjusts the Amp Gain, Knob5
adjusts the Amp Level, and Knob 6 adjusts the Master Level (volume).

2
Bypass Mode
The RP355 presets can be bypassed via a true analog bypass circuit for a clean, unprocessed
guitar signal. To bypass the RP355, press the Up and Down Footswitches simultaneously. The
Display reads  indicating the preset is bypassed. Press any footswitch to exit Bypass and
return the RP355 to the last preset used.
Tuner Mode
The Tuner in the RP355 allows you to quickly tune or check the tuning on your guitar. Enter
Tuner mode by pressing and holding the Up and Down Footswitches simultaneously for 2
seconds. The Display briefly shows  indicating that you are in Tuner mode. To begin
tuning, play a note on your guitar (a harmonic at the 12th fret usually works best). The Display
shows the note being played.The Matrix LEDs indicate whether you are sharp or flat. The top 5
red LEDs indicate the note is sharp and should be tuned down. The bottom 5 red LEDs indicate
the note is flat and should be tuned up. The center green LED indicates the note is in tune. The
output is muted in Tuner mode. The Expression Pedal controls the guitar volume while tuning.
Exit tuner mode by pressing any Footswitch.
AMP LEVELAMP GAIN
EXPRESSION
EXPRESSION
Display shows
note played
Top LEDs indicate
note is sharp
Green LED indicates
note is in tune
Bottom LEDs indicate
note is flat
In Tuner mode, you can change your tuning reference. The default factory setting is A=440 Hz
(displayed as ). Rotating Knob 1 selects alternate dropped tunings and tuning references.
Alternate tunings are A = A, A = G, A = G, and tuning references A=427 - A=453. The display
window briefly flashes the current tuning reference.
Tone Library (Knob 1)
In Performance mode, this knob selects a variety of genre-based amp tone defaults ranging
from Blues to Metal to Country. Behind the scenes, the Compressor, Distortion, Amp/Cabinet
model, EQ, and Noise Gate are configured to create a specified tone with a single click of this
knob. You can further refine the sound by editing the preset (see Editing/Creating Presets on page
11). Changing between different Tone Library defaults does not change the Chorus/FX, Delay
or Reverb, letting you experiment with different amp styles quickly in the context of the current
effect chain.
Effects Library (Knob 2)
In Performance mode, this knob selects a variety of post-amplifier model effect chains (Chorus,
Chorus + Delay, Delay + Reverb, etc.).You can further refine the sound by editing the preset
(see Editing/Creating Presets on page 11). Changing between different Effects Library defaults
does not change the Compressor, Distortion, Amp/Cabinet model, EQ, and Noise Gate settings,
letting you experiment with different effect chains quickly in the context of the current amp
tone.
Effects Level (Knob 3)
In Performance mode, this knob changes the relative level of the post-amp effects (Chorus/FX,
Delay, and Reverb). This can be thought of as an effects mix control, where turning this knob
clockwise increases the level of these effects and turning it counter-clockwise decreases the
level of these effects.
Amp Gain (Knob 4)
This knob adjusts the Gain (distortion) for the selected Amp model (not available for Acoustic).
Amp Level (Knob 5)
This knob adjusts the Level (volume) of the selected Amp model.

3
Master Level (Knob 6)
This knob controls the overall output volume of all of the RP355’s presets.
X-EditTM Editor/Librarian
You can edit your RP355 with your computer, using the X-EditTM Editor/Librarian. Download
X-EditTM, USB drivers, and documentation from www.digitech.com.
Presets
Presets are named and numbered locations of programmed sounds which reside in the RP355.
Presets are recalled with the Footswitches. The active effects in each preset are indicated by
lighted LEDs in the Effect Matrix. The RP355 comes with 70 User presets (1-70) and 70 Factory
presets (F1-F70). The User presets are locations where your creations may be stored. The
Factory presets do not allow you to store any changes to them. From the factory, the 70 User
presets are exact duplicates of the 70 Factory presets. This allows you to create your own
presets without losing the sounds that came with the RP355.
Create Your Sound in Three Easy Steps
1.
2.
3.
... Rock on!
To make further edits, refer to page 11.
To store the preset, refer to page 12.
Tone Library
Select one of 30 different tones from rock, metal, blues, country, and
more. The tones consist of a combination of Compressor, Distortion
Stompbox, Amplifier/Cabinet, EQ, and Noise Gate.
For a complete list of available tones, see page 33.
Effects Library
Select one of 30 diffferent effects chains. The effects consist of a com-
bination of Chorus/FX, Delay, and Reverb.
For a complete list of available effects chains, see page 33.
Effects Level
Adjust the overall level of the post-amp effects to your liking.

4
A Guided Tour of the RP355
Front Panel
EXPRESSION
DISTORTION BYPASS STOMP Mode DELAY
AMP A-B
1
2
3
4
56
7
8
9
1. Up/Down Footswitches
These two Footswitches are used to select presets, access the Tuner, or bypass the RP355. The
Footswitch on the right will select the next preset up, and the Footswitch on the left will select
the next preset down. Pressing both Footswitches together will bypass the currently selected
preset. Pressing and holding both Footswitches will access the Tuner. Press any Footswitch to
exit Bypass or Tuner mode.
2. Knobs 1-6 (From left to right)
These six knobs perform various functions, depending on which mode is currently active and
what (if anything) is being edited. The functions are listed below:
Tone Library (Knob 1)
1. In Performance mode, this knob selects from a library of preset amp tones. (See page 33
for a list of preset amp tones.)
2. When editing a preset, this knob changes the Amp or Effect model for the selected row.
3. When editing an Effect row, press this knob to turn on or bypass the effect.
4. When the Drums row is selected, this knob selects the first pattern of each style (Rock,
Blues, Jazz, etc.).
5. When the Expression row is selected, this knob selects the Expression Pedal, LFO 1, and
LFO 2 parameter links.
Effects Library (Knob 2)
1. In Performance mode, this knob selects from a library of preset effect chains. (See page
33 for a list of preset effect chains.)
2. When editing a preset, this knob modifies the parameter listed in the column
directly above it for the selected Effect row.
3. When the Drums row is selected, this knob selects the different drum patterns available.
4. When the Expression row is selected, this knob selects which parameter is assigned to
the Expression Pedal, LFO1 or LFO2.

5
EffectsLevel(Knob3)
1. In Performance mode, this knob adjusts the overall level of post amp model effects
(Chorus/FX, Delay, and Reverb).
2. When editing a preset, this knob modifies the parameter listed in the column directly
above it for the selected Effect row.
3. When the Drums row is selected, this knob adjusts the playback Tempo of the drum
machine.
4. When the Expression row is selected, this knob selects the heel value for the parameter
linked to the Expression Pedal.
Amp Gain (Knob 4)
1. In Performance mode, this knob adjusts the Amp Gain (distortion) for the selected Amp
model. To change the Amp Gain for Amp A or Amp B, select amp channels using the
AmpA/BFootswitchand use this knob to change each channel’s Amp Gain.
2. When editing a preset, this knob modifies the parameter listed in the column directly
above it for the selected Effect row.
3. When the Expression row is selected, this knob selects the toe value for the parameter
linked to the Expression Pedal.
4. When the Drums row is selected, this knob changes the drum machine playback level.
AmpLevel(Knob5)
1. In Performance mode, this knob adjusts the Amp Level (volume) of the selected Amp
model. To change the Amp Level for Amp A or Amp B, select amp channels using the
AmpA/BFootswitch and use this knob to change each channel’s Amp Level.
2. When editing a preset, this knob modifies the parameter listed in the column directly
above it for the selected Effect row.
3. When the Expression row is selected, this knob selects the LFO waveform. LFO 1 or
LFO 2 must first be selected with Knob 1 for this parameter to be available.
MasterVolume(Knob6)
1. In Performance mode, this knob adjusts the output level of the RP355.
2. When editing a preset, this knob modifies the parameter listed in the column directly
above it for the selected Effect row.
3. When the Expression row is selected, this knob sets the LFO speed. LFO 1 or LFO 2
must first be selected with Knob 1 for this parameter to be available.
3. Edit Buttons
These buttons navigate up and down the matrix, selecting the row of parameters which the
knobs will edit. Press one of these buttons to step through the Effect rows, and return to the
preset name display. See page 11 for more information about editing presets. In Learn-A-LickTM
mode, these control playback speed.
4. Matrix
The matrix provides information regarding the current preset and parameter edit functions. In
Performance mode, the LEDs running down the left side of the Matrix provide a visual indica-
tion of which effects are in use for the selected preset. While editing a preset, the LEDs indi-
cate that the Effect row is selected for editing. In Tuner mode, the LEDs indicate whether the
note played is sharp, flat, or in tune.
5. Display
The Display provides information for different functions depending on the mode that has been
selected. In Performance mode, the Display will show the currently selected preset name
and number. In Edit mode, the Display will show the name and value of the parameter being
adjusted. In Bypass mode, the Display will read . In Tuner mode, the Display will show
the note played.

6
6. Drums
The Drums button is used to turn on and off the RP355’s built-in drum machine. When the
Drums button is turned on, the Drums LED lights and the selected drum pattern plays continu-
ously. Select the Drums row using the Edit buttons and use Knobs 1-4 to change the style,
pattern, tempo, and level of the drum machine. See page 26 for more information about the
drum machine and a list of patterns.
Note: The drum machine cannot be used while the Phrase Looper is active.
7. Store
The Store button is used to save your custom edits to the user presets. See page 12 for more
information about storing presets.
8. Expression Pedal
The Expression Pedal provides real-time control of the RP355’s Volume,Wah, or any assigned
effect parameter. Almost every parameter is available for Expression Pedal control. The
Expression Pedal is equipped with a V-switch that turns the Wah feature on or off when you
apply extra pressure to the toe. See page 13 for more information about Wah models; see page
28 to learn about adjusting V-switch sensitivity and calibrating the Expression Pedal; refer to
page 32 for a list of parameters you can link to the Expression Pedal.
9. Amp A/B Footswitch
This Footswitch switches between two amp channels for the selected preset. The Display will
read  when channel A is selected, and  when channel B is selected. Press and
hold the AmpA/B and the Up Footswitches simultaneously to access Learn-A-LickTM mode.
(See page 27 for more information on Learn-A-LickTM. ) Pressing and holding the Amp A/B foot-
switch enables and disables the Phrase Looper; see page 26 for more information about using
the Phrase Looper.
Note: You can apply different EQ models, EQ settings, Amp models and/or Amp settings to
each amp channel (Amp A and Amp B).When the EQ or Amp row is selected, press the Amp
A/BFootswitch to select a channel. The display will show which channel is selected (
or ).

7
Rear Panel
1. Input
Connect your instrument to this high-impedance TS input.
2. Amp / Mixer (for the 1/4"Outputs)
This button optimizes the RP355’s 1/4" outputs for use when plugged into a guitar amp or a
mixer/recording device. When set to Mixer (“In” position; display reads ), speaker com-
pensation is turned on and the outputs are optimized for connecting to a mixer or recording
device. When set to Amp (“Out” position; display reads ), the outputs are optimized for
running directly in to the input of a guitar amp.
3. 1/4"Left (Mono) and Right Outputs
Connect the Left (Mono) output to the input of a single amplifier (or mixer input) for mono
operation. Connect the Left and Right outputs to the inputs of 2 amplifiers (or 2 mixer chan-
nels) for stereo operation.
4. Headphones
Connect stereo headphones to this 1/8" jack. For proper frequency response, the XLRAmp/
Mixer switch should be set to Mixer (“In” position) when using headphones. Headphones with
16-100 Ohm impedance are recommended.
5. Aux In
Connect the headphone output of an MP3 or CD player using a stereo 1/8" cable to this 1/8"
stereo TRS jack for rehearsing with your favorite pre-recorded material, and using the Learn-A-
LickTM feature (see page 27 for more info). Adjust the output level of your playback device and
the RP355’s Master Level knob for the proper volume balance.
6. Amp / Mixer (for the XLR Outputs)
This button optimizes the RP355’s XLR outputs for use when plugged into a power amp/speaker
system or a mixer/recording device. When set to Mixer (“In” position; display reads ),
speaker compensation is turned on and the outputs are optimized for connecting to a mixer,
recording device or headphones. When set to Amp (“Out” position; display reads ), the
outputs are optimized for running directly in to the input of a guitar amp or power amp.
7. XLR Balanced Line Outputs
Connect these outputs to your power amplifier/speaker system or to a mixing console that
accepts balanced XLR connections. Speaker compensation can be enabled on these outputs
when connected to a full-range speaker system. The XLR outputs are always configured for ste-
reo operation.
8. USB Port
The USB port is for connecting the RP355 to a computer and serves two purposes: (1) for
use with the downloadable X-Edit™ Editor/Librarian software, and (2) for streaming audio to
and from the computer. The RP355 will stream 2 channels up and 2 channels down from the
computer at 44.1kHz, 16 and 24 bit. A utility panel in the Editor/Librarian controls the direct/
playback mix and USB record level with the included Cubase®LE 4 sofware, or any recording
software the RP355 is connected to. Knobs 4 and 5also control the direct/playback mix and
USB record level when USB is connected and the Pickup Row is selected.
Note: X-Edit Editor/Librarian software and USB drivers can be downloaded at
www.digitech.com.
9. Power Input
Connect only the DigiTech®PS0913B power supply to this jack.
1 2 3 4 5 6 7 8 9

8
Getting Started
Making Connections
There are several different connection options available with the RP355. Before connecting the
RP355, make sure that the power to your amplifier and the RP355 is turned off. There is no
power switch on the RP355. To turn the RP355 on or off, connect or disconnect the included
PS0913B power supply from the Power Input jack.
Mono Operation - Amplier
Connect your guitar to the Input of the RP355. Connect a single mono instrument cable from
the Left (Mono) output of the RP355 to the instrument input or effect return on your ampli-
fier. Set the ¼˝ Amp/Mixer switch to Amp.
¼” Amp/Mixer
switch set to“Amp”
¼”Left (Mono) Output
Input
Stereo Operation
For stereo operation connect the guitar to the Input of the RP355. Connect one cable to
the RP355’s Left (Mono) output, and another cable to the RP355’s Right output. Connect
one cable to the input of one amplifier, channel of a mixer, or power amp. Connect the second
cable to a second amplifier, second channel of a mixer, or power amp. If connecting to a mixing
console, set the pan controls of the mixer channels hard left and right in order to retain stereo
separation. If connecting to a mixer, set the ¼˝ Amp/Mixer switch to Mixer. If connecting to
two amplifiers, set the ¼˝ Amp/Mixer switch to Amp.
Stereo Amp Setup
¼”Left (Mono)
Output
Input
¼”Right Output
¼” Amp/Mixer
switch set to“Amp”

9
Stereo Mixer Setup
-10
0
+5
+10
-20
-30
-∞
-5
1 2 3 4
-10
0
+5
+10
-20
-30
-∞
-5
-10
0
+5
+10
-20
-30
-∞
-5
-10
0
+5
+10
-20
-30
-∞
-5
5
-10
0
+5
+10
-20
-30
-∞
-5
6
-10
0
+5
+10
-20
-30
-∞
-5
7
-10
0
+5
+10
-20
-30
-∞
-5
8
-10
0
+5
+10
-20
-30
-∞
-5
Input
XLR Left Out
XLR Right Out
XLR Amp/Mixer
switch set to“Mixer”
Computer Recording Setup
USB Ports
Input
XLR Amp/Mixer
switch set to“Mixer”
XLR Left Out XLR Right Out
USB
Studio Reference
Monitors
Amp/Mixer Setup
Stereo Power Amp
2- Speaker Cabs
Input
P A Speaker (Left)
XLR Left and
Right Outputs
1/4" Left and
Right Outputs
P A Speaker (Right)
12345 6
Mixer
XLR Amp/Mixer
switch set to “Mixer”
¼” Amp/Mixer
switch set to “A mp”

10
Applying Power
Before applying power to anything, set your amp(s) to a clean tone and set the tone controls to
a flat EQ response (on most amps, this would be 0 or 5 on the tone controls). Then follow the
steps listed below.
1. Turn the amp volume all the way down.
2. Connect the plug of the PS0913B power supply to the power jack on the rear panel of the
RP355.
3. Connect the other end of the PS0913B power supply to an AC outlet. Turn the RP355’s Mas-
ter Level knob (Knob 6) down to “0”.
4. Turn the power of your amplifier(s) to the on position and adjust the volume(s) to a normal
playing level.
5. Gradually increase the RP355’s Master Level knob to achieve the desired volume.
DISTORTION BYPASS STOMP Mode DELAY
AMP A-B
4.Turn amp volume up
1.Turn amp volume down
2. Connect PS0913B to power jack
3. Connect PS0913B
to AC outlet and
turn the RP355’s
Master Level to “0”
5.Turn the RP355’s Master Level
to the desired listening volume

11
Section Two - Editing Functions
Editing/Creating Presets
The RP355 is designed to make preset editing and creation easy and intuitive. When creating
your own sound, you must first start with an existing preset. Note that the preset you begin
with doesn’t have to be in the memory location you intend to have it reside, since you can
store it to any User preset location during the store procedure.
The easiest way to start is by using the Tone Library and Effects Library knobs. The Tone
Library knob will let you select from a variety of pre-programmed amp/distortion tones (see
page 33) based on different musical styles. The Effects Library knob will then let you select
from a palette of effects chains (see page 33), from simple delays to full multi-effect signals with
modulation, delay and reverb. Use the Effects Level Knob to increase or decrease the overall
Chorus/FX, Delay and Reverb levels if desired. Using these three controls should get you close
to a sound you are after. From there you can then use the Edit buttons to navigate through
the individual effects for some fine tune edits.
EXPRESSION
1. Select a tone
with the
Tone Library knob
2. Select an effect
or effects chain with the
Effects Library knob
3. Adjust the
effects level with the
Effects Level knob
To edit and create a preset:
1. Use the Up and Down Footswitches to select the preset you wish to edit.
2. If you find a preset close to what you want, you can begin editing the effect parameters by
pressing the Edit Up/Down buttons and selecting the Effect row you want to edit.
3. If you are trying to find something different from the existing presets, begin by using the Tone
Library, Effects Library and Effects Level knobs to get close to a sound you want.
4. Press the Edit Up/Down buttons to begin selecting the individual Effects rows to edit their
parameters.
5. To bypass or enable an Effect row, press the Tone Library knob.
6. Use the Knobs 2-6 to modify the effects’ parameter settings.
7. When editing the Amp Model and EQ rows, use the AmpA/BFootswitch to select be-
tween the two amp channels. You can then edit each channel’s Amp Model, Cabinet Model,
Amp Gain,Amp Level, and EQ settings independently.
Note: Anytime a stored value within a preset is changed, the Store button LED lights up. This
indicates that you need to store the changes. Changing presets, or turning the power off before
storing any changes, erases any changes made and the RP355 will revert to the stored values for
the preset.

12
Storing/Copying/Naming a Preset
Once the preset has been modified to your liking, you may store your settings to any of the
70 User preset locations (presets 1-70). The following steps outline the procedure for storing
changes to a preset or copying a preset to a different location:
1. Press the Store button once. The Store button LED blinks and the first character in the
Display flashes, indicating that you can now name your custom creation.
2. Use Knob 1 to select the alpha-numeric character and Knob 2 to select the next character
location.
EXPRESSION
1. Press Store;
characters in Display
flash individually
2. Use Knobs to
name Preset
3. Once the desired name is shown in the display, press the Store button again to enter the
second stage of the storing process. The red Display begins to flash.
4. Select the User preset location where your new sound will reside using the Up and Down
Footswitches. The displays show the preset name and User preset number about to be
overwritten.
EXPRESSION
DISTORTION BYPASS STOMP Mode DELAY
AMP A-B
4. Select destination
with Footswitches
3. Press Store again;
Preset number flashes
5. Press the Store button again to save the changes.
The procedure for copying one preset to another preset location is the same. Use the Foot-
switches to select the preset that you want to copy, then follow steps 1-4 for storing a preset
as described above. Press either Edit button at any time to abort the Store procedure.

13
Section Three - Models and Parameters
About the Models
The RP355 can be thought of as several different “virtual” amplifiers and individual, high-tech
stompboxes in a single programmable package. With stompboxes, the order in which they are
connected affects the overall sound. The RP355 has placed the Amp and Effect models in an
order for optimum results. The following diagram shows the order in which they are connected.
Pickup
Simulator Wah Compressor Distortion Amp Modeling EQ Cabinet
Model
Noise Gate Volume
Pedal Pre
Whammy/
Chorus/FX
(Pre)
Chorus/FX
(Post) Delay Reverb Volume
Pedal Post
Model Denitions
Each Amp and Effect model within the RP355 can be programmed to suit your personal taste
and application. Understanding how these components alter the sound, and how each parame-
ter alters the effect, will help you achieve the sound you are looking for. The following overview
of the RP355’s effects outlines what each effect and parameter does.
Pickup
The Pickup Simulator provides the thick tone of a humbucker pickup to a guitar with single
coil pickups, or the bright, edgy sound of a single coil pickup to a guitar with a humbucker. This
gives you the best of both worlds without having to change guitars during a performance.
Pickup Model - Knob 1 selects the Pickup model to be simulated. Values include:
(gives a single coil pickup the warm tone of a humbucker), and  (gives a
humbucker the unique sound of a single coil). Press this knob to turn Pickup modeling on
and off.
USB/RPMix(When connected to a computer via USB) - Knob 2 adjusts the out-
put mix between the RP355 and playback from the computer. Ranges from  - 
 - .
USBLevel(When connected to computer via USB) - Knob3 adjusts the RP355’s
recording level sent to the computer. Ranges from  to 
Preset Level - Knob 6 adjusts the preset’s level. Ranges from to .
Wah
Wah is an effect controlled by an Expression Pedal making the guitar sound as if it’s saying
“Wah.”
Wah Model - Knob 1 selects the Wah model. Values include:  (DigiTech®Full
Range Wah sweeps the entire spectrum of audible frequencies),  (Cry Wah is a
traditional sounding Wah), and (based on a Vox®Clyde McCoyTM Wah). Press this
knob to turn Wah models on and off.
Wah Minimum - Knob 2 adjusts the Wah Pedal Minimum. Ranges from (toe up) to
 (toe down).
WahMaximum-Knob3 adjusts the Wah Pedal Maximum. Ranges from (toe up) to
 (toe down).
Wah Level - Knob 6 adjusts the Wah Level. Ranges from 0dB to +12dB.

14
Compressor
A Compressor is used to increase sustain, tighten up guitars, and prevent the signal from clip-
ping the input of other effects. It sets a maximum boundary for the strength of a signal.
Comp Model - Knob 1 selects one of three Compressor models:  (DigiTech®
Compressor),  (Based on a Boss®CS-2 Compressor/Sustainer), or 
(Based on an MXR®Dynacomp). Press this knob to turn the selected Compressor model
on and off.
Knobs 2-6 have the following functions for the various Compressor models:
Compressor
Model
Knob 2
(Sustain)
Knob3
(Tone)
Knob 4
(Attack)
Knob5 Knob 6
(Compres-
sor Level)
 Sustain Tone Attack -- Level
 Sustain -- Attack -- Level
 Sensitivity -- -- -- Output
Distortion
The RP355 models the tones of 18 popular distortion stompboxes, each of which can be
tweaked and modified, just like the real thing.
Distortion Model - Knob 1 selects one of 18 Distortion models. Press this knob to turn
the selected Distortion model on and off.
 - Based on an Ibanez®TS-9
 -
Based on an Ibanez TS-808 Tube
Screamer
 -Based on a Voodoo Lab Sparkle
Drive
 - Based on a Guyatone®Overdrive
OD-2
 - Based on a DOD®250
Overdrive/Preamp
-DigiTech Redline - Modified
Overdrive
 - Based on a Pro Co RATTM
 - Based on an MXR®Distortion +
 - Based on a Boss®DS-1TM
Distortion
 - DigiTech®Grunge®
 - Based on a Boss MT-2 Metal
Zone®
 -DigiTech Death MetalTM
 - Based on a DOD Gonkulator
Ring Mod
 - Based on a Roger Mayer OctaviaTM
 - Based on a Demeter Fuzzulator
 - Based on a DOD Classic Fuzz
 - Based on an Arbiter®Fuzz FaceTM
 -Based on an Electro-Harmonix®
Big Muff Pi®
Disclaimer:AutoYa, DigiTech, DOD, Death Metal, Johnson Amplification, Grunge, Lexicon, Multi Chorus,
Whammy, and YaYa are trademarks of Harman International Industries, Inc. Other product names modeled
in this product are trademarks of their respective companies that do not endorse and are not associated or
affiliated with DigiTech or Harman International Industries, Inc.They are trademarks of other manufacturers and
were used merely to identify products whose sounds were reviewed in the creation of this product.

15
Knobs 2-6 have the following functions for the various Distortion models:
Dist.
Model
Knob 2
(Gain)
Knob3
(Param. 1)
Knob 4
(Param. 2)
Knob5
(Param.3)
Knob 6
(Distor-
tion Level)
P7
(X-EditTM
only)
 Drive Tone -- -- Level --
 Overdrive Tone -- -- Level --
 Gain Tone Clean -- Volume --
 Drive -- -- -- Level --
 Gain -- -- -- Level --
 Gain Low High -- Level --
 Distortion Filter -- -- Level --
 Distortion -- -- -- Output --
 Gain Tone -- -- Level --
 Grunge Butt Face -- Loud --
 Gain Low Mid High Level Mid Freq
 -- Low Mid High Level --
 Gunk Smear Suck -- Heave --
 Drive -- -- -- Volume --
 Fuzz Tone Loose/Tight -- Volume --
 Fuzz Tone -- -- Volume --
 Fuzz -- -- -- Volume --
 Sustain Tone -- -- Volume --

16
Amplier
Amp Modeling is a technology which applies the tone of several popular modern and vintage
amps. Amp Modeling also includes an acoustic guitar simulation.
Note: You can select different Amp models and/or modify Amp settings for each amp channel
(Amp A and Amp B).When the Amp row is selected, press the AmpA/BFootswitch to select
a channel.The display will show which channel is selected ( or ).
Amp Model - Knob 1 selects one of the classic, modern, and DigiTech custom Amp
models. Press this knob to turn Amp and Cabinet modeling on and off. Note that when
you select an Amp model, the default Cabinet model is automatically selected. You can,
however, change the Cabinet model after selecting an Amp model.
 - Based on a ‘57 Fender®Tweed
Champ®
 - Based on a ‘57 Fender Tweed
Deluxe
 - Based on a ‘59 Fender Tweed
Bassman®
 - Based on a ‘65 Fender Blackface
Twin Reverb®
 - Based on a ‘65 Fender Blackface
Deluxe Reverb®
 - Based on a ‘65 Marshall®JTM-45
 - Based on a ‘68 Marshall 100 Watt
Super Lead (plexi)
 - Based on a ‘68 Marshall Jump
Panel
 - Based on a ‘77 Marshall Master
Volume
 - Based on an ‘83 Marshall JCM800
 - Based on a ‘93 Marshall JCM900
 - Based on a ‘62 Vox®AC15
 - Based on a ‘63 Vox AC30 Top
Boost
 - Based on a ‘69 Hiwatt®Custom
100 DR103
 - Based on an ‘81 Mesa Boogie®
Mark II C
 - Based on an ‘01 Mesa Boogie
Dual Rectifier
 -
Based on a ‘96 MatchlessTM HC30
 - Based on an ‘88 Soldano SLO-100
 - DigiTech®Solo
 - DigiTech Metal
 - DigiTech Bright Clean
 - DigiTech Chunk
 - DigiTech Clean Tube
 - DigiTech High Gain
 -DigiTech 2101 Clean Tube
 -DigiTech 2101 Saturated Tube
 - DigiTech Monster
 - Based on a Tweed front Blackface
power hybrid
 - Based on a ‘65 Blackface into a
‘58 Bassman
 - DigiTech Stoner Rock
 - DigiTech Dark Metal
 - DigiTech Brown sound
 - Dreadnaught acoustic
 - Jumbo acoustic
 - No amp