digi-tech RP150 User manual

Modeling
Guitar Processor
User’s
Manual

DECLARATION OF CONFORMITY
Manufacturer’s Name: DigiTech
Manufacturer’s Address: 8760 S. Sandy Parkway
Sandy, Utah 84070, USA
declares that the product:
Product name: RP150
Note: Product name may be suffixed by the letters EX, EU, JA, and UK.
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 (1998)
EMC: EN 55013 (2001 + A1)
EN 55020 (1998)
Supplementary Information:
The product herewith complies with the requirements of the Low Voltage Directive 72/23/EEC and the EMC Directive
89/336/EEC as amended by Directive 93/68/EEC.
Vice-President of Engineering-MI
8760 S. Sandy Parkway
Sandy, Utah 84070, USA
Date: September 02, 2006
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]

Section Four - Other Functions
Drum Machine................................................................36
Optional Passive Volume/
Continuous Control Pedal...........................................37
Factory Reset..................................................................37
Section Five - Appendix
Specifications...................................................................38
Tone LIbrary....................................................................40
Effects Library.................................................................41
Preset List........................................................................42
Table of Contents
Section One - Introduction
Getting Acquainted .......................................................... 1
Included Items .................................................................. 1
About the RP150 ............................................................. 2
Performance Mode ....................................................... 2
Bypass Mode .................................................................. 2
Tuner Mode..................................................................... 2
Tone Library Knob ........................................................ 4
Effects Library Knob..................................................... 4
Master Level Knob........................................................ 4
X-EditTM Editor/Librarian............................................. 4
Presets ............................................................................. 5
A Guided Tour of the RP150 ........................................ 6
Front Panel ..................................................................... 6
Rear Panel.....................................................................10
Getting Started...............................................................12
Making Connections......................................................12
Mono Operation - Amplifier ....................................12
Stereo Operation........................................................13
Applying Power ..............................................................15
Section Two - Editing Functions
Editing/Creating Presets ...............................................16
Storing/Copying a Preset..............................................18
Section Three - Models and Parameters
About the Models..........................................................19
Model Definitions ..........................................................20
Pickup ...............................................................................20
Wah...................................................................................20
Compressor ....................................................................21
Distortion ........................................................................ 22
Amplifier...........................................................................24
Cabinet.............................................................................25
EQ......................................................................................25
Noise Gate......................................................................26
Chorus/FX.......................................................................27
Chorus...........................................................................27
Flanger ...........................................................................28
Phaser ............................................................................28
Vibrato............................................................................29
Rotary Speaker............................................................29
Tremolo..........................................................................29
Panner.............................................................................30
Envelope Filter ............................................................. 30
Auto Ya™ ......................................................................30
Step Filter......................................................................31
DigiTech Whammy™..................................................31
Pitch Shift ...................................................................... 32
Detune...........................................................................32
Intelligent Pitch Shifting..............................................33
Delay .................................................................................34
Reverb ..............................................................................35

1
Section 1 - Introduction
Getting Acquainted
Congratulations on your purchase of the RP150. You now have an incredibly advanced modeling
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 RP150 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 and a built-in drum
machine, and you have the RP150: the key to unlock your creative potential.
Included Items
Before you get started, please make sure that the following items have been included:
• RP150
• PS0913B Power Supply
• Warranty Card
The utmost care was taken while your RP150 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 completing your warranty card or regis-
tering online at www.digitech.com. It is your safeguard should a problem arise with your RP150.
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 tampered
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: DigiTech, Lexicon,Whammy,YaYa,AutoYa, and Johnson Amplification are trademarks of Harman
International Industries, Inc. Other product names modeled in this product are trademarks of their respec-
tive 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.

2
3
About the RP150
Performance Mode
When you first apply power to the RP150, it powers up in Performance mode. Performance mode
provides access to all of the presets within the RP150 via the Up and Down Footswitches.
Knob 1 selects a tone from the Tone Library, Knob 2 selects an effect combination from the Ef-
fects Library, Knob 3 adjusts the Effects Level, and Knob 4 adjusts the Master Level (volume).
Bypass Mode
The RP150 presets can be bypassed via a true analog bypass circuit for a clean, unprocessed guitar
signal. To bypass the RP150, press both Footswitches simultaneously. The Display reads 
indicating the preset is bypassed. Press either Footswitch to exit Bypass and return the RP150
to the last preset used.
Tuner Mode
The Tuner in the RP150 allows you to quickly tune or check the tuning on your guitar. Enter Tuner
mode by pressing and holding both Footswitches simultaneously. 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 indi-
cate 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. Exit tuner mode by
pressing either Footswitch.
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 and dropped tunings. Alternate tunings are
A=453Hz to A=427 Hz (displayed as  to ). Dropped tunings are A=A flat (displayed as ),
A=G (displayed as ), and A=G flat (displayed as ). The display window will briefly flash the cur-
rently selected tuning preference.
Exit Tuner mode by pressing both Footswitches simultaneously.

4
5
Tone Library Knob
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,
and EQ 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 16). Changing between
different Tone Library defaults does not change the Chorus/FX, Delay or Reverb, letting you ex-
periment with different amp styles quickly in the context of the current effect chain.
Effects Library Knob
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 16). Changing between different Effects Library defaults does not
change the Compressor, Distortion, Amp/Cabinet model, and EQ settings, letting you experiment
with different effect chains quickly in the context of the current amp tone.
Effects Level Knob
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.
Master Level Knob
This knob controls the overall output volume of all of the RP150’s presets.
X-EditTM Editor/Librarian
You can edit your RP150 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 RP150.
Presets are recalled with the Footswitches. The active effects in each preset are indicated by
lighted LEDs in the Effect Matrix. The RP150 comes with 50 User presets (1-50) and 50 Factory
presets (51-00). 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 50 User presets are
exact duplicates of the 50 Factory presets. This allows you to create your own presets without
losing the sounds that came with the RP150.
The Tone Library knob, Effects Library knob, and Effects Level knob make it easy to
quickly load preset tones, effects, and effects chains.
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 learn about storing changes to presets, see page 18.

6
7
A Guided Tour of the RP150
Front Panel
1
2
3
4
56
7
1. Footswitches
These two Footswitches are used to select presets, access the Tuner, or bypass the RP150. 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 for 2 seconds will access the Tuner. Press either
Footswitch to exit Bypass or Tuner mode.
2. Knobs 1-4
These four 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 (Knob 1)
1. In Performance mode, this knob selects from a library of pre-programmed amp tones.
(See page 40 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.).
Effects Library Knob (Knob 2)
1. In Performance mode, this knob selects from a library of pre-programmed effect
configurations. (See page 41 for a list of preset effect configurations.)
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.

8
9
Effects Level Knob (Knob 3)
1. In Performance mode, this knob adjusts the overall level of post amp model effects (Cho-
rus/Mod, 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.
Master Volume Knob (Knob 4)
1. In Performance mode, this knob adjusts the output level of the RP150.
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 drum machine playback level.
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 16 for more information about editing presets.
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 indication
of which effects are in use for the currently selected preset. While editing a preset, the LEDs
indicate the Effect row currently 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 number. In
Edit mode, the Display will show the value of the parameter being adjusted. In Tuner mode, the
Display will show the note played.
6. Drums
The Drums button is used to turn on and off the RP150’s built-in drum machine. When the
Drums button is turned on, the Drums button LED lights and the selected drum pattern plays
continuously. 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 36 for more information about the
drum machine and a list of patterns.
7. Store
The Store button is used to save your custom edits to the user presets. See page 18 for more
information about storing presets.

10
11
Rear Panel
1 2 3 4 5 6 7
1. Input
Connect your instrument to this high-impedance TS input.
2. Amp / Mixer
This button optimizes the RP150’s outputs for use when plugged into a guitar amp or a mixer/
recording device. When set to Mixer (“In” position), the outputs are optimized for connecting
to a mixer, recording device or headphones. When set to Amp (“Out” position), the outputs are
optimized for running directly in to the input of a guitar amp.
3. 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 channels)
for stereo operation.
4. Headphones
Connect a pair of stereo headphones to this 1/8" jack. For proper frequency response, the Amp/
Mixer switch should be set to Mixer (“in” position) when using headphones. Headphones with an
impedence of 100 Ohms or less are recommended.
Note: The Headphones output can have either a mono or stereo signal, depending on what 1/4"
outputs are connected. If neither (or both) 1/4" outputs are connected, the Headphones output
will be in stereo. If a cable is connected to the Left (Mono) 1/4" output only, the Headphones
output will be in mono.
5. Control In
You can connect a passive volume or continuous control pedal to this 1/4" jack to control the a
Wah and/or the WhammyTM when either or both of those effects are turned on.When neither
Wah nor Whammy is turned on, the pedal controls the RP150’s volume by default.
6. USB Port
The USB port is for connecting the RP150 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. Audio streaming is limited to 2 channels up and 2 channels down from the
computer at 44.1kHz, 16 bit and 24 bit. A utility panel in the Editor/Librarian controls the direct/
playback mix with any recording software the RP150 is connected to.
Note: You can download the X-Edit Editor/Librarian software and USB drivers at www.digitech.
com.
7. Power Input
Connect only the DigiTech®PS0913B power supply to this jack.

12
13
Getting Started
Making Connections
There are several different connection options available with the RP150. Before connecting the
RP150, make sure that the power to your amplifier and the RP150 is turned off. There is no
power switch on the RP150. To turn the RP150 on or off, connect or disconnect the included
PS0913B power supply from the Power Input jack.
Mono Operation - Amplifier
Connect your guitar to the Input of the RP150. Connect a single mono instrument cable from
the Left (Mono) output of the RP150 to the instrument input or effect return on your amplifier.
Set the Amp/Mixer switch to Amp.
Guitar Amp Input/Effect Return
Left (Mono)
Output Input
Amp/Mixer
switch set to
Amp.
NOTE: When using a
guitar amp, it may be best to
connect the Output of the
RP150 to the effect return
of the amplifier.
Stereo Operation
For stereo operation connect the guitar to the Input of the RP150. Connect one cable to the
RP150’s Left (Mono) output, and another cable to the RP150’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 Amp/Mixer switch to Mixer. If connecting to two amplifiers, set
the Amp/Mixer switch to Amp.
Stereo Amp Setup
Guitar Amp Input/Effect Returns
Outputs Input
Amp/Mixer
switch set to
Amp.
NOTE: When using a guitar amp,
it may be best to connect the
Output of the RP150 to the effect
return of the amplifier.

14
15
Stereo Mixer Setup
Computer Recording Setup
Outputs
Instrument Input
Powered
Studio Monitor
Powered
Studio Monitor
USB
Amp/Mixer switch
set to Mixer
Outputs
Instrument Input
Pan
Mute
-10
0
+5
+10
-20
-30
-
-5
L/ R
Mute
L/ R
Mute
L/ R
Mute
L/ R
-5
-4
-3
-2
-1 0+1
+2
+3
+4
+5 Pan
-5
-4
-3
-2
-1 0+1
+2
+3
+4
+5 Pan
-5
-4
-3
-2
-1 0+1
+2
+3
+4
+5 Pan
-5
-4
-3
-2
-1 0+1
+2
+3
+4
+5 Pan
-5
-4
-3
-2
-1 0+1
+2
+3
+4
+5 Pan
-5
-4
-3
-2
-1 0+1
+2
+3
+4
+5 Pan
-5
-4
-3
-2
-1 0+1
+2
+3
+4
+5 Pan
-5
-4
-3
-2
-1 0+1
+2
+3
+4
+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
Mute
L/ R
5
-10
0
+5
+10
-20
-30
-
-5
Mute
L/ R
6
-10
0
+5
+10
-20
-30
-
-5
Mute
L/ R
-10
0
+5
+10
-20
-30
-
-5
Aux1
0
2
4 6
8
10
Aux2
0
2
4 6
8
10
Aux1
0
2
4 6
8
10
Aux2
0
2
4 6
8
10
Aux1
0
2
4 6
8
10
Aux2
0
2
4 6
8
10
Aux1
0
2
4 6
8
10
Aux2
0
2
4 6
8
10
Aux1
0
2
4 6
8
10
Aux2
0
2
4 6
8
10
Aux1
0
2
4 6
8
10
Aux2
0
2
4 6
8
10
Aux1
0
2
4 6
8
10
Aux2
0
2
4 6
8
10
Aux1
0
2
4 6
8
10
Aux2
0
2
4 6
8
10
Mute
L/ R
-10
0
+5
+10
-20
-30
-
-5
Mixer
Amp/Mixer switch
set to Mixer
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
RP150.
3. Connect the other end of the PS0913B power supply to an AC outlet. Turn the RP150’s Mas-
ter Level knob (Knob 4) 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 RP150’s Master Level knob to achieve the desired volume.
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 RP150’s Master
Level to “0”
5.Turn the RP150’s Master Level to the
desired listening volume

16
17
Section Two - Editing Functions
Editing/Creating Presets
The RP150 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 40) based on different musical styles. The Effects Library knob will then let you select
from a palette of effects chains (see page 41), from simple delays to full multi-effect signals with
modulation, delay and reverb. Use the Effects Level Knob to easily increase or decrease the
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.
To edit and create a custom preset:
1. Use the Footswitches to select the preset you wish to edit. If you are trying to find some-
thing 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.
2. Once you have a sound close to what you are after, begin editing the effect parameters by press-
ing the Edit Up/Down buttons and selecting the Effect row you want to edit.
3. To turn on or off an Effect row, press Knob 1 and then use Knobs 2-4 to modify the effects
parameter settings.
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 edits made and the RP150 will revert to the stored values for the preset.

18
19
Storing/Copying a Preset
Once the preset has been modified to your liking, you may store your settings to any of the
50 User preset locations (presets 1-50). 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 and the current Preset location will flash in the Display. This is
asking you to select a new User Preset location where your new sound will reside.
2. If desired, select a new User Preset location using the Footswitches.
3 Press the Store button again to save the changes.
The procedure for copying one Preset to another Preset location is the same. Simply use the
Footswitches to select the Preset that you want to copy, then follow the steps listed above.
2. Select a destination
with the Footswitches.
1. Press the Store button;
the Preset number flashes.
3. Press the Store button
again to save your changes.
Section Three - Models and Parameters
About the Models
The RP150 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 RP150 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 Chorus/FX
Volume
Pedal
Chorus/FX
(Whammy)
Delay Reverb

20
21
Model Definitions
Each Amp and Effect model within the RP150 can be programmed to suit your personal taste
and application. Understanding how these components alter the sound, and how each parameter
alters the effect, will help you achieve the sound you are looking for. The following overview of the
RP150’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.
Preset Level - Knob 4 adjusts the volume level for each preset individually.
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 4 adjusts the Wah Level. Ranges from 0dB to +12dB.
Compressor
A Compressor is used to increase sustain, tighten up guitars, and prevent the signal from clipping
the input of other effects. It sets a maximum boundary for the strength of a signal.
Comp Model - Knob 1 selects one of two Compressor models:  (DigiTech®
Compressor) or  (Based on a Boss®CS-2 Compressor/Sustainer). Press this knob to turn
the selected Compressor models on and off.
Sustain - Knob 2 adjusts the amount of sustain. Ranges from to .
Tone/Attack - Knob 3 adjusts the tone for the DigiTech Compressor, or attack for the
Boss CS-2. Ranges from to .
Compressor Level - Knob 4 adjusts the Level from the Compressor. Ranges from to
.
Attack (X-EditTM only for DigiComp) - Knob 4 adjusts the amount of time the
Compressor takes to respond to a signal that exceeds the threshold. Ranges from to .

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Distortion
The RP150 models the tones of 9 popular distortion stompboxes, each of which can be tweaked
and modified, just like the real thing.
Distortion Model - Knob 1 selects one of 4 Distortion models. Press this knob to turn
the selected Distortion model on and off.
 - Based on an Ibanez®TS-9
 - Based on a DOD®250 Overdrive/Preamp
 - Based on a Pro Co RATTM
 - Based on a Boss®DS-1TM Distortion
 - DigiTech®Grunge
 - Based on a Boss MT-2 Metal Zone®
 - Based on a DOD Gonkulator Ring Mod
 - Based on an Arbiter®Fuzz FaceTM
 - Based on an Electro-Harmonix®Big
Muff Pi®
DigiTech and DOD 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.
Knobs 2, 3, and 4 have the following functions for the various Distortion models:
Distortion
Model
Knob 2
(Gain)
Knob 3
(Tone)
Knob 4
(Level)
P4
(X-EditTM
only)
P5
(X-Edit
only)
P6
(X-Edit
only)
 Drive Tone Level -- -- --
 Gain -- Level -- -- --
 Distortion Filter Level -- -- --
 Gain Tone Level -- -- --
 Grunge Face Loud Butt -- --
 Gain Mid Level Level Low Mid Freq High
 Gunk
(Dist Gain)
Smear (Ring
Mod Level)
Suck
(Dist Level)
Heave
(Output Lvl)
-- --
 Fuzz -- Volume -- -- --
 Sustain Tone Volume -- -- --

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Amplifier
Amp Modeling is a technology which applies the tone of several popular modern and vintage
amps. Amp Modeling also includes an acoustic guitar simulation.
Amp Model - Knob 1 selects one of the classic, modern, and DigiTech custom Amp mod-
els. 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 ‘68 Marshall®100 Watt
Super Lead (plexi)
 - Based on a ‘77 Marshall Master Volume
 - Based on an ‘83 Marshall JCM800
 - Based on a ‘63 Vox AC30Top Boost
 - Based on a ‘69 Hiwatt®Custom 100
 - Based on an ‘81 Mesa Boogie®Mark II C
- Based on an ‘01 Mesa Boogie Dual
Rectifier
- Based on a ‘96 MatchlessTM HC30
 - DigiTech®Solo
 - DigiTech Metal
 - DigiTech Bright Clean
 - DigiTech Clean Tube
 - Dreadnaught acoustic
 - Direct (No Amp Model)
DigiTech is a trademark 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.
Cabinet - Knob 2 selects the speaker Cabinet model.
 - Based on a 1x12 ‘57 Fender®Tweed
Deluxe®
 - Based on a 2x12 ‘65 Fender Blackface Twin
Reverb®
 - Based on a 2x12 ‘63 Vox®AC30 Top Boost
w/ Jensen®Blue Backs
 - Based on a 4x10 ‘59 Fender Tweed
Bassman®
 - Based on a 4x12 Marshall®1969 Straight w/
Celestion®G12-T70
 - Based on a 4x12 Johnson®Straight w/
Celestion Vintage 30’s
 - 4x12 DigiTech®Solo
 - 2x12 DigiTech Bright
 - 4x12 DigiTech Metal
 - 4x12 DigiTech Rock
 - 4x12 DigiTech Alt Rock
 - 4x12 DigiTech Vintage
 - Direct (No cabinet model)
DigiTech and Johnson Amplification 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 Digi-
Tech 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.
Amp Gain - Knob 3 adjusts the Gain (distortion) for the selected Amp model (not avail-
able for Acoustic or Direct). The Gain parameter ranges from to .
Amp Level - Knob 4 adjusts the Level (volume) of the selected Amp model. The Level
parameter ranges from to .
EQ
The RP150’s EQ helps further shape your tone with Bass, Midrange, and Treble controls. To help
get you started, there are four preset EQ curves: Mid Boost (), Scoop (), Bright (), and
Warm () that can be selected using Knob 1. Bass, Midrange, and Treble parameters range from
-12dB to +12dB.
EQ Model - Knob 1 selects between 4 different EQ modes, each with different frequency

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centers for Mid and Treble. Pressing this knob turns the EQ on and off.
Bass - Knob 2 adjusts the amount of low end level (Bass).
Midrange - Knob 3 adjusts the amount of midrange level.
Mid Freq (X-EditTM only) - This parameter selects the frequency that the Mid parameter
adjusts. Ranges from 300 Hz to 5000 Hz.
Treble - Knob 4 adjusts the amount of high end level (Treble).
Treble Freq (X-Edit only) - This parameter selects the frequency that the Treb parameter
adjusts. Ranges from 500 Hz to 8000 Hz.
Noise Gate
A Noise Gate () is designed to eliminate noise while you are not playing; this model also
includes an Auto Swell (), which provides an automatic volume swell effect.
Gate Model - Knob 1 selects between the DigiTech®noise gate or the volume swell effect.
Values include:  (Selects the noise gate) and  (Selects the volume swell effect.) Press
this knob to turn the noise gate or auto swell on and off.
Threshold/Swell Sensitivity - Knob 2 sets the signal strength (Threshold) required to
open or close the Noise Gate, or the Swell Sensitivity for the Auto Swell. Both parameters
range from (opens easily/high sensitivity) to  (requiring strong signals to open/high sen-
sitivity).
Attack Time - Knob 3 sets the attack time. Ranges from (shorter attack time) to 
(longer attack time).
Release - Knob 4 sets the Release parameter. Ranges from to .
Attenuation (X-EditTM only) - Knob 5 sets the Attenuation parameter. Ranges from to
.
Chorus/FX
The Chorus/FX row in the RP150 is a multi-function module, allowing you to select Effect models
such as Chorus, Flanger, Phaser, Tremolo, Panner, Vibrato, Rotary Speaker, YaYa™, AutoYa™,
SynthTalk™, Envelope Filter (auto wah), Detune, Pitch Shift, and Whammy™ effects. When the
Chorus/FX row is selected, Knob 1 is used to choose the Effect model. Press this knob to turn
these Effect models on and off. Only one of the effects in this row can be used at a time. After
selecting the type of effect in this module, Knobs 2-4 can then be used to adjust the individual
parameters associated with the selected effect. The following list describes each Effect model and
its parameters in more detail:
Chorus
A Chorus adds a short delay to your signal. The delayed signal is modulated in and out of tune and
then mixed back with the original signal to create a thicker sound. The RP150 includes the fol-
lowing Chorus Effect models:  (based on the classic Boss®CE-2 Chorus),  (DigiTech®’s Dual
Chorus), and  (DigiTech’s famous Multi Chorus®).
Speed - Knob 2 adjusts the rate (Speed) of the modulation. Ranges from to .
Depth - Knob 3 adjusts the Depth of the modulation. Ranges from to .
Level - Knob 4 controls the level of the effect (DigiTech Chorus models only). Ranges
from to .
Waveform (X-Edit only for DigiTech Chorus models) - Selects a waveform: , , or
 (Triangle, Sine, or Square).

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Flanger
A Flanger uses the same principle as a Chorus but uses a shorter delay time and adds regeneration
(or repeats) to the modulating delay. This results in an exaggerated up and down sweeping motion
to the effect. The RP150 includes the following Flanger Effect models:  (the DigiTech Flanger),
and  (based on an MXR®Flanger).
Knobs 2, 3, and 4have the following functions for the Flanger models:
Flanger
Model
Knob 2
(Speed)
Knob 3
(Depth)
Knob 4
(Regen)
P5
(X-EditTM
only)
P6
(X-Edit
only)
P7
(X-Edit
only)
 Speed Depth Regen -- Level Waveform
 Speed Width Regen Manual -- --
Phaser ()
A phaser splits the incoming signal, and then changes the phasing of the signal. This signal is then
taken in and out of phase and mixed back in with the original signal. As the phasing changes, differ-
ent frequencies get canceled resulting in a warm sort of twisting sound.
Knobs 2, 3, and 4have the following functions:
Speed - Knob 2 adjusts the rate (Speed) of the modulation. Ranges from to .
Depth - Knob 3 adjusts the Depth of the modulation. Ranges from to .
Regeneration - Knob 4 controls the regeneration of the effect. Ranges from to .
Waveform (X-EditTM only) - Selects a waveform: , , or  (Triangle, Sine, or Square).
Level (X-Edit only) - Controls the level of the effect. Ranges from to .
Vibrato ()
A Vibrato effect modulates the pitch of the incoming signal at an even rate.
Speed - Knob 2 adjusts the rate (Speed) at which the pitch modulates. Ranges from to
.
Depth - Knob 3 adjusts the intensity (Depth) of the modulating pitch. Ranges from to
.
Rotary Speaker ()
Rotary Speaker is an emulation of a device that included a spinning horn and woofer. The rotation
of these two speakers produced an interesting combination of the sound panning from side to
side. This produced a slight pitch change due to the speed of the sound coming towards, and then
going away from the listener.
Speed- Knob 2 adjusts the rate (Speed) of the spinning speakers. Ranges from to .
Intensity - Knob 3 controls the intensity of the effect. Ranges from to .
Doppler - Knob 4 controls the Pitch Shift effect that is the ratio between the horn and the
rotor positions. Ranges from to .
Crossover (X-EditTM only)- Selects the crossover frequency between the horn and rotor.
Ranges from (200 Hz) to  (1600 Hz).
Tremolo ()
A Tremolo effect modulates the volume of the signal at an even rate.
Speed - Knob 2 adjusts the rate (Speed) at which the volume modulates. Ranges from to
.
Depth - Knob 3 adjusts the intensity (Depth) of the modulating volume. Ranges from to
.
Waveform - Knob 4 selects a waveform: , , or  (Triangle, Sine, or Square).

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Panner ()
An Auto Panner modulates the sound from left to right at an even rate.
Speed - Knob 2 adjusts the rate (Speed) at which the signal pans from side to side. Ranges
from to .
Depth - Knob 3 adjusts the intensity (Depth) of the changing pan. Ranges from to .
Waveform - Knob 4 selects a waveform: , , or  (Triangle, Sine, or Square).
Envelope Filter ()
The Envelope Filter is a dynamicWah effect that alters your sound based upon how hard you play.
Sensitivity - Knob 2 adjusts the sensitivity or the input signal required to trigger the Wah
effect. Ranges from to .
Range - Knob 3 controls the range of the Envelope effect. Ranges from to .
AutoYa™ ()
An AutoYa combines the characteristics of a Wah and a Flanger together creating an almost human
vowel characteristic as if the guitar were saying “Yah.” The AutoYa™ automatically provides this
animation to the sound at an even rate.
Speed - Knob 2 adjusts the speed of the AutoYa sweep. Ranges from to .
Intensity - Knob 3 adjusts the intensity of the AutoYa effect. Ranges from to .
Range - Knob 4 adjusts the throaty quality of the AutoYa effect. Ranges from to .
Step Filter ()
The Step Filter is like an automatic “random wah” with a square waveform.
Speed - Knob 2 adjusts the speed of the Wah effect. Ranges from to .
Intensity - Knob 3 controls the intensity of the Wah effect. Ranges from to .
DigiTech Whammy™ ()
The DigiTech WhammyTM is an effect that uses an Expression Pedal to bend the pitch of the in-
coming signal, or add a bendable harmony with the original signal. As the Pedal is moved, the note
bends either up or down. When DigiTech Whammy is selected, it is automatically placed before
the Amp modeling as shown in the block diagram on page 19.
Shift Amount - Knob 2 selects the interval and direction of the pitch bend. Choices are
as follows:
WhammyTM(no Dry Signal)
(1 octave above)
(2 octaves above)
(a second below)
(a second below reversed pedal action)
(a fourth below)
(an octave below)
(2 octaves below)
(Dive Bomb)
Harmony Bends(Dry Signal Added)
(a minor third to a Major third)
(a second above to a Major third above)
(a third above to a fourth above)
(a fourth above to a fifth above)
(a fifth above to an octave above)
(one octave above)
(one octave down)
(octave up/down)
Pedal Position - Knob 3 provides a manual control of the Whammy pedal position.
Ranges from to .
Mix - Knob 4 adjusts the Whammy mix. Ranges from to .

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Pitch Shift ()
A Pitch Shifter copies the incoming signal, then shifts the pitch of the copy to a different note.The
shifted note is then mixed back with the original signal, sounding as if two guitars were playing
different notes.
Shift Amount - Knob 2 selects the interval of the shifted pitch. Ranges from –24 (2
octaves below) to 24 (2 octaves above).
Mix - Knob 4 controls the mix level of the shifted pitch. Ranges from to .
Detune ()
A Detuner makes a copy of your incoming signal, takes the copied signal slightly out of tune from
the original, then mixes the two signals together. The result is a doubling type of effect as if two
guitars were playing the same part together.
Shift Amount - Knob 2 adjusts the amount of pitch difference applied to the copied signal.
Ranges from –24 to 24 cents.
Level - Knob 4 controls the mix of the detuned note. Ranges from to .
Intelligent Pitch Shifting ()
Intelligent Pitch Shifting makes a copy of the incoming signal, and then changes the pitch of the
copied note to a diatonically correct interval specified by the Amount parameter. An Intelligent
Pitch Shifter sharpens or flattens the shifted pitch in order to keep the specified interval within
the selected key and scale creating a true harmony.
Shift - Knob 2 selects the amount or harmony interval for the Intelligent Pitch Shifter. Interval
choices include:
 (octave down)
 (a seventh below)
 (a sixth below)
 (a fifth below)
 (a fourth below)
 (a third below)
 (a second below)
 (a second above)
 (a third above)
 (a fourth above)
 (a fifth above)
 (a sixth above)
 (a seventh above)
 (an octave above)
Key - Knob 3 selects the musical key that the IPS uses. Key choices range from the Key of E
() through the Key of Eb ().
Scale - Knob 4 selects the scale the IPS will use. Scale choices include: Major (), Minor
(), Dorian (), Mixolydian (), Lydian (), and Harmonic Minor ().
Level (X-EditTM only) - Adjusts the IPS Level of all the pitch-altering effects in this module.
Ranges from to .