Included Items

Before you get started, please make sure that the following items have been included: RP255 Cubase LE 4 Recording Software DVD PS0913B Power Supply Warranty Card
The utmost care was taken while your RP255 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 registering online at www.digitech.com. It is your safeguard should a problem arise with your RP255.
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 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.

About the RP255

Performance Mode
When you first apply power to the RP255, it powers up in Performance mode. Performance mode provides access to all of the presets within the RP255 via the Up and Down Footswitches. Knob 1 selects a tone from the Tone Library, Knob 2 selects an effect from the Effects Library, Knob 3 adjusts the Effects Level, and Knob 4 adjusts the Master Level (volume).

Bypass Mode

The RP255 presets can be bypassed via a true analog bypass circuit for a clean, unprocessed guitar signal. To bypass the RP255, press both Footswitches simultaneously. The Display reads Bypass indicating the preset is bypassed. Press either Footswitch to exit Bypass and return the RP255 to the last preset used.

Tuner Mode

The Tuner in the RP255 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 tuner 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 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

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 Tuner mode, the Display will show the note played. 6. Drums The Drums button is used to turn on and off the RP255s built-in drum machine. When the Drums button is turned on, the Drums 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 39 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 17 for more information about storing presets. 8. Expression Pedal The Expression Pedal provides real-time control of the RP255s Volume, Wah, or the assigned effect parameter. Almost every parameter is available for Expression Pedal control. The Expression Pedal is equipped with a V-switch that activates or deactivates the Wah feature when you apply extra pressure to the toe. See page 20 for more information about Wah models; see page 42 to learn about adjusting V-switch sensitivity and calibrating the Expression Pedal; refer to pages 45-46 for a list of parameters you can link to the Expression Pedal.

Rear Panel

1. Input Connect your instrument to this high-impedance TS input. 2. Amp / Mixer This button optimizes the RP255s outputs for use when plugged into a guitar amp or a mixer/ recording device. When set to Mixer (In position), 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), 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.

Stereo Amp Setup

Guitar Amp Input/Effect Returns
NOTE: When using a guitar amp, it may be best to connect the guitar to the Input of the RP255 and the Output of the RP255 to the effect return of the amplifier.
Outputs Amp/Mixer switch set to Amp. Input

Stereo Mixer Setup

Mixer Outputs

Instrument Input

Amp/Mixer switch set to Mixer

Computer Recording Setup

Powered Studio Monitor Powered Studio Monitor Amp/Mixer switch set to Mixer Instrument Input

Outputs USB

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 RP255. 3. Connect the other end of the PS0913B power supply to an AC outlet. Turn the RP255s Master 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 RP255s Master Level knob to achieve the desired volume.
2. Connect PS0913B to power jack 4.Turn amp volume up
3. Connect PS0913B to AC outlet and turn the RP255s Master Level to 0 5.Turn the RP255s Master Level to the desired listening volume

1.Turn amp volume down

Editing/Creating Presets
The RP255 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 doesnt 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 47) based on different musical styles. The Effects Library knob will then let you select from a palette of effects chains (see page 48), 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 preset: 1. Use the Footswitches to select the preset you wish to edit. 2. 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. 3. Press the Edit Up/Down buttons to begin selecting the individual Effects rows to edit their parameters. 4. To bypass or enable an Effect row, press the Tone Library knob. 5. Use Knobs 2-4 to modify the effects parameter settings. 6. Select the Pickup row and use Knob 4 to adjust the Preset Level.

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 RP255 will revert to the stored values for the preset.
Storing/Copying/Naming a Preset
Once the preset has been modified to your liking, you may store your settings to any of the 60 User preset locations (presets 1-60). 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.
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 Display begins to flash.
4. Select the User preset location where your new sound will reside using the Up and Down Footswitches. The display alternates between showing the preset name and User preset number about to be overwritten.
3. Press Store again; Preset number flashes
4. Select destination with Footswitches
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 Footswitches 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.

About the Models

The RP255 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 RP255 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

Compressor

Chorus/FX (Whammy)

Distortion

Amp Modeling

Cabinet Model

Noise Gate

Volume Pre

Chorus/FX

Reverb

Volume Post

Model Definitions
Each Amp and Effect model within the RP255 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 RP255s 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: SC>Hb (gives a single coil pickup the warm tone of a humbucker), and Hb>SC (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 presets level.

Wah is an effect controlled by an Expression Pedal making the guitar sound as if its saying Wah. Wah Model - Knob 1 selects the Wah model. Values include: FULRNG (DigiTech Full Range Wah sweeps the entire spectrum of audible frequencies), CRYwah (Cry Wah is a traditional sounding Wah), and clyde(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 0 (toe up) to 99 (toe down). Wah Maximum - Knob 3 adjusts the Wah Pedal Maximum. Ranges from 0 (toe up) to 99 (toe down).
Wah Level - Knob 4 adjusts the Wah Level. Ranges from 0dB to +12dB. 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: DIGCMP (DigiTech Compressor) or CSCOMP (Based on a Boss CS-2 Compressor/Sustainer). Press this knob to turn the Compressor on and off. Sustain - Knob 2 adjusts the amount of sustain. Ranges from 0 to 99. Tone/Attack - Knob 3 adjusts the tone for the DigiTech Compressor, or attack for the Boss CS-2. Ranges from 0 to 99. Compressor Level - Knob 4 adjusts the Level from the Compressor. Ranges from 0 to 99. Attack (X-EditTM only for DigiComp) - Adjusts the amount of time the Compressor takes to respond to a signal that exceeds the threshold. Ranges from 0 to 99.
The RP255 models the tones of 13 popular distortion stompboxes, each of which can be tweaked and modified, just like the real thing. Distortion Model - Knob 1 selects one of 13 Distortion models. Press this knob to turn the Distortion on and off.
scream - Based on an Ibanez TS-- Based on an Ibanez TS-808 Tube Screamer oddriv - Based on a Guyatone Overdrive OD-2 dod250 - Based on a DOD 250 Overdrive/Preamp rodent - Based on a Pro Co RATTM mxdist - Based on an MXR Distortion +
DSDist - Based on a Boss DS-1TM Distortion grunge - DigiTech Grunge zone - Based on a Boss MT-2 Metal Zone death - DigiTech Death Metal gonklt - Based on a DOD Gonkulator Ring Mod fuzz - Based on an Arbiter Fuzz FaceTM big pi - 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.

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 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.
Amp Gain - Knob 3 adjusts the Gain (distortion) for the selected Amp model (not available for Acoustic). The Gain parameter ranges from 0 to 99. Amp Level - Knob 4 adjusts the Level (volume) of the selected Amp model. The Level parameter ranges from 0 to 99.
The RP255s 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 (midbst), Scoop (ScooP), Bright (BRight), and Warm (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 (Mid Boost, Scoop, Bright, and Warm), each with different frequency 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). Mid - Knob 3 adjusts the midrange level. Mid Freq (X-EditTM only) - This parameter selects the frequency that the Mid parameter adjusts. Ranges from 300 Hz to 5000 Hz. Treb - Knob 4 adjusts the high end level (Treble). Treb Freq (X-Edit only) - This parameter selects the frequency that the Treb parameter adjusts. Ranges from 500 Hz to 8000 Hz.
A Noise Gate is designed to eliminate noise while you are not playing, or provide an auto volume swell effect. Gate Model - Knob 1 selects between the DigiTech noise gate or the volume swell effect. Values include: gate (Selects the noise gate) and swEll (Selects the volume swell effect.) Press this knob to turn the noise gate 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 0 (opens easily/high sensitivity) to 99 (requiring strong signals to open/high sensitivity). Attack Time - Knob 3 sets the attack time. Ranges from 0 (shorter attack time) to 99 (longer attack time). Release - Knob 4 sets the Release parameter. Ranges from 0 to 99. Attenuation (X-EditTM only) - Sets the Attenuation parameter. Ranges from 0 to 99.

The Chorus/FX row in the RP255 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 RP255 includes the following Chorus Effect models: CE CHS (based on the classic Boss CE-2 Chorus), CHORUS (DigiTechs Dual Chorus), and MCHORS (DigiTechs famous Multi Chorus). Speed - Knob 2 adjusts the rate (Speed) of the modulation. Ranges from 0 to 99. Depth - Knob 3 adjusts the Depth of the modulation. Ranges from 0 to 99. Level - Knob 4 controls the level of the effect (DigiTech Chorus models only). Ranges from 0 to 99.
Waveform (X-EditTM only for DigiTech Chorus models) - Selects a waveform: triang, Sine, or Square. 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 RP255 includes the following Flanger Effect models: fLangr (the DigiTech Flanger), and mxFLgr (based on an MXR Flanger). Knobs 2, 3, and 4 have the following functions for the Flanger models:
Flanger Model flangr mxflgr Knob 2 (Speed) Speed Speed Knob 3 (Depth) Depth Width Knob 4 (Regen) Regen Regen P5 (X-EditTM only) Waveform Manual P6 (X-Edit only) Level --
Phaser (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, different frequencies get canceled resulting in a warm sort of twisting sound. Knobs 2, 3, and 4 have the following functions for the two Phaser models: Speed - Knob 2 adjusts the rate (Speed) of the modulation. Ranges from 0 to 99.

Depth - Knob 3 adjusts the Depth of the modulation. Ranges from 0 to 99. Regeneration - Knob 4 controls the regeneration of the effect. Ranges from 0 to 99. Waveform (X-EditTM only) - Selects a waveform: triang, Sine, or Square. Level (X-Edit only) - Controls the level of the effect. Ranges from 0 to 99. Vibrato (viBRaT) 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 0 to 99. Depth - Knob 3 adjusts the intensity (Depth) of the modulating pitch. Ranges from 0 to 99. Rotary Speaker (ROTARY) 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 0 to 99. Intensity - Knob 3 controls the intensity of the effect. Ranges from 0 to 99. Doppler - Knob 4 controls the Pitch Shift effect that is the ratio between the horn and the rotor positions. Ranges from 0 to 99. Crossover (X-EditTM only)- Selects the crossover frequency between the horn and rotor. Ranges from 0 (200 Hz) to 99 (1600 Hz).
VibroPan (vibpan) A vibrato is an effect that modulates the pitch of the incoming signal. This will take the whole signal slightly in and out of tune at a steady pace. The VibroPan also incorporates an automatic panner with the vibrato effect that creates a lush chorus-like sound. Speed - Knob 2 adjusts how fast the signal is being modulated. Depth - Knob 3 adjusts the amount of pitch change. Vibrato/Pan- Knob 4 adjusts the amount of panning incorporated with the vibrato effect. When the Vib control is at 0, this effect is a standard vibrato. As the Level parameter is turned up, the phase difference of the vibrato signal sent to the two channels is changed until a full stereo image is obtained at 99. Waveform (X-EditTM only) - Selects a waveform: triang, Sine, or Square. Tremolo (TRMoLO) 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 0 to 99. Depth - Knob 3 adjusts the intensity (Depth) of the modulating volume. Ranges from 0 to 99. Waveform - Knob 4 selects a waveform: triang, Sine, or Square. Panner (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 0 to 99.

Depth - Knob 3 adjusts the intensity (Depth) of the changing pan. Ranges from 0 to 99. Waveform - Knob 4 selects a waveform: triang, Sine, or Square. Envelope Filter (eNvlOp) The Envelope Filter is a dynamic Wah 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 0 to 99. Range - Knob 3 controls the range of the Envelope effect. Ranges from 0 to 99. AutoYa (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 0 to 99. Intensity - Knob 3 adjusts the intensity of the AutoYa effect. Ranges from 0 to 99. Range - Knob 4 adjusts the throaty quality of the AutoYa effect. Ranges from 0 to 49. YaYa (yaya) The YaYa is another effect exclusive to DigiTech products. Like the AutoYa, it combines the characteristics of a wah and a flanger together providing a unique talk box type of effect, but is controlled by the Expression Pedal. Pedal - Knob 2 adjusts the Ya pedal position. Ranges from 0 to 99. Intensity - Knob 3 adjusts the intensity of the YaYa effect. Ranges from 0 to 99.
Range - Knob 4 adjusts the throaty quality of the YaYa effect. Ranges from 0 to 49. Step Filter (stpflt) 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 0 to 99. Intensity - Knob 3 controls the intensity of the Wah effect. Ranges from 0 to 99. DigiTech Whammy (wHammy) The DigiTech WhammyTM is an effect that uses an Expression Pedal to bend the pitch of the incoming 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:

Key - Knob 3 selects the musical key that the Harmony Pitch Shifting uses. Key choices range from the Key of E (KEY E) through the Key of Eb (KEY E). Scale - Knob 4 selects the scale the Harmony Pitch Shifting will use. Scale choices include: Major (MAJOR), Minor (MINOR), Dorian (DORIAN), Mixolydian (MIXLYd), Lydian (LYDIAN), and Harmonic Minor (HMINor). Level (X-EditTM only) - Adjusts the Harmony Pitch Shifting Level (IPSLVL) of all the pitch-altering effects in this module. Ranges from 0 to 99.
Delay is an effect that will record a portion of the incoming signal, and then play it back a short time later. The recording can repeat just once or several times. Delay Model - Knob 1 selects one of the 5 different Delay models. Values include: algdly (DigiTech Analog Delay), digdly (DigiTech Digital Delay), moddly (DigiTech Modulated Delay), pngdly (DigiTech Pong Delay), and tapdly (DigiTech Tape Delay). Press this knob to turn the Delay models on and off. Knobs 2, 3, and 4 have the following functions for the various Delay models:
Delay Model algdly digdly moddly pngdly tapdly Knob 2 (Time) Time Time Time Time Time Knob 3 (Repeats) Repeats Repeats Repeats Repeats Repeats Knob 4 (Level) Delay Level Level Delay Level Delay Level Level P4 (X-EditTM only) -Duck Thresh Depth Duck Thresh Wow P5 (X-Edit only) -Duck Level -Duck Level Flutter
Time - Knob 2 adjusts the length of time between repeats. Ranges from 10 ms to 5 seconds. Repeats - Knob 3 adjusts the number of times the delayed signal will repeat. Ranges from 0 to 99/rpthld (Repeat Hold). Delay Level / Level - Knob 4 adjusts the volume of the delayed signal. Ranges from 0 to 99.
Duck Thresh (X-EditTM only) - Adjusts the level the input signal must reach before the delayed signal is attenuated. Ranges from 0 to 99. Depth (X-Edit only) - Adjusts the intensity of the modulation (chorusing) in the delay repeats. Ranges from 0 to 99. Wow (X-Edit only) - Adjusts low frequency modulation (below about 6 Hz) that would be caused by tape speed variation. Ranges from 0 to 99. Duck Level (X-Edit only) - Adjusts the amount of attenuation applied to the delayed signal. Ranges from 0 to 99. Flutter (X-Edit only) - Adjusts a higher frequency modulation (from about 6 to 30 Hz) that would be caused by tape speed variation. Ranges from 0 to 99.

1. Press either Edit button until the Expression row has been selected (indicated by the LED lighting on the Expression row). EXP appears in the display. 2. Rotate Knob 2 until the desired parameter appears in the Display. See page 45 for a complete list of parameters that can be linked to the Expression Pedal. 3. Rotate Knob 3 to select the minimum (heel) value the assigned parameter will reach with the Expression Pedal in the toe up position. 4. Rotate Knob 4 to select the maximum (toe) value the assigned parameter will reach with the Expression Pedal in the toe down position. 5. Store your Expression Pedal assignment to your preset. See page 17 for more information on the storing procedure.

Factory Reset

This function resets the RP255 to its original factory settings. This procedure erases all custom User presets, and recalibrates the Expression Pedal. ATTENTION: Performing this function will erase all user-programmed data. All such data will be lost forever! Be sure you want to erase the memory and start fresh before continuing with this procedure. The procedure for performing a Factory Reset is as follows: 1. Press and hold the Store button while powering up the RP255. 2. When the display prompts you with FACRST, release the Store button, which is now flashing. 3. Press and hold the flashing Store button for 3 seconds until RSTORD appears in the display and release (The Factory Reset procedure takes approximately 20 seconds). The Expression Pedal calibration procedure now commences.
Expression Pedal Calibration
The Expression Pedal on the RP255 needs to be recalibrated for use after a factory reset has been performed. This calibration procedure is automatically entered after a factory reset procedure. (You can also initiate the calibration procedure by pressing and holding both Footswitches for approximately 5 seconds.) In the event the Pedals calibration fails, or if the Pedal does not function properly, it can be re-calibrated using the Pedal Calibration procedure. This will not erase the User presets. The procedure for Calibrating the Expression Pedal is as follows: 1. Press and hold the Up/Down Footswitches until PDLCAL appears in the display (BYPASS and TUNER will be displayed before PDLCAL is accessed) 2. When the Display prompts you with TOE DN, rock the Expression Pedal forward (toe down) and press either Footswitch. 3. When the Display prompts you with TOE UP, rock the Expression Pedal back (toe up) and press either Footswitch. 4. The Display now prompts you to calibrate the V-Switch sensitivity (VSwxxx), where XXX is the current V-Switch threshold. Rock the Expression Pedal forward and press firmly on the toe once to turn the V-Switch on (wah ON), and again to turn the V-Switch off (wahOFF). 5. If the V-Switch is too sensitive, press the right Up Footswitch to raise the threshold (range is 0-200). Keep testing the V-Switch sensitivity and adjust the threshold until it only engages when you want it to (too sensitive a setting will lead to the V-Switch falsely triggering on or off when using the Expression Pedal). 6. When the V-Switch sensitivity is set to your satisfaction, press both Up/Down Footswitches simultaneously to exit. Note: If the Display shows error, an error has occurred and steps 2 through 5 should be repeated.

Section 5 - Appendix

Specifications
General Specifications A/D/A Converter: 24-bit high performance audio Sampling Frequency: 44.1 kHz DSP Section: AudioDNA2 DSP Processor Simultaneous Effects: 11 Preset Memory: 60 User Presets (1-60) / 60 Factory Presets (61-120) Phrase Looper: 20 seconds of record time Drum Machine: 60 Patterns Dimensions: 14.5 Length x 8.75 Width x 2.5 Height Unit Weight: 4.9 lbs. Analog Input Connections: Guitar Input: 1/4 Unbalanced (TS) Input Impedance: 500k Ohms Aux Input: 1/8 Stereo (TRS) Analog Output Connections: Left/Right Outputs: 1/4 Impedance Unbalanced Left/Right Output Impedance: 500 Ohms per side Maximum Output: +10dBu Headphones: 1/8 Stereo (TRS) 13.6mW per channel @ 50 Ohms Digital Connections: Universal Serial Bus (USB): Type B, supports USB2.0 Full Speed RP255 USB Recording Specifications: Sample Rate: 44.1 kHz Bit depth: supports 16-bit or 24-bit (depends on setup in Recording Software)
Power Requirements: US and Canada: 120 VAC, 60 Hz Adapter: PS0913B-120 Japan: 100 VAC, 50/60 Hz Adapter: PS0913B -100 Europe: 230 VAC, 50 Hz Adapter: PS0913B -230 UK: 240 VAC, 50 Hz Adapter: PS0913B -240 Windows Software Requirements Vista Home/Premium, XP Home/Professional (SP2 installed,.NET 2.0 installed*) Pentium/Athlon 1.4GHz or later 512MB RAM (1GB RAM recommended) 180MB hard disk space for application DVD-ROM drive USB Port Internet connection required for Cubase activation *.NET 2.0 will be installed during installation of X-Edit software if required on XP systems Mac Software Requirements OS 10.4.x or later PowerPC G4/G5 1GHz or later 512MB RAM (1GB RAM recommended) 180MB hard disk space for application DVD-ROM drive USB Port Internet connection required for Cubase activation
Expression Pedal - Assignable Parameters

Tone Library

Effects Library
DigiTech 8760 South Sandy Parkway Sandy, Utah 84070 PH (801) 566-8800 FAX (801) 566-7005 http://www.digitech.com
Printed in China RP255 Owners Manual 18-6411V
2009 Harman International Industries, Incorporated, all rights reserved. DigiTech and the RP255 are trademarks of the Harman Music Group. 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. They are trademarks of other manufacturers and were used merely to identify products whose sounds were reviewed in the creation of this product.