1. Introduzione
The DigiTech RP155 is a versatile guitar multi-effects processor designed to provide a wide array of amplifier models, cabinet simulations, stompboxes, and effects. This unit integrates a built-in 20-second looper, 60 high-quality drum patterns, and USB audio streaming capabilities, allowing for direct recording to a computer. This manual will guide you through the features and functions of your RP155, ensuring optimal performance and longevity.
2. Istruzzioni di sicurità
Please read and understand these safety instructions before operating the DigiTech RP155. Retain this manual for future reference.
- Alimentazione elettrica: Aduprate solu l'adattatore di alimentazione specificatu. Volumu incorrectutage pò dannà l'unità è annullà a garanzia.
- L'acqua è l'umidità: Do not expose the unit to rain, moisture, or any liquids. If liquid enters the unit, disconnect power immediately and contact customer support.
- Fonti di calore: Mantene l'unità luntanu da fonti di calore cum'è radiatori, registri di calore, stufe o altri apparecchi chì producenu calore.
- Ventilazione: Assicurà una ventilazione adatta. Ùn bluccà micca alcuna apertura di ventilazione.
- Service : Ùn pruvate micca di fà a riparazione di l'unità da per voi. Affidate tutta a manutenzione à u persunale di assistenza qualificatu.
- Pulizia: Pulite solu cù un pannu seccu. Ùn aduprate micca detergenti liquidi o pulitori aerosol.
3. Cuntenutu di u pacchettu
Verificate chì u vostru pacchettu cuntene i seguenti elementi:
- DigiTech RP155 Guitar Multi-Effects Processor
- Adattatore di putenza
- Manuale d'uso (stu documentu)
Note: A USB cable is not typically included and may need to be purchased separately for computer connectivity.
4. Produttu Finituview
The DigiTech RP155 features a robust design with intuitive controls for guitarists.
4.1 Cuntrolli Front Panel

Image 1: Front view of the DigiTech RP155, showing the display, control knobs, and footswitches.
The front panel provides access to the main display, control knobs, and footswitches for navigating presets and engaging effects.
- Display: Shows current preset number, effect parameters, and tuner information.
- Manette di cuntrollu: Used for adjusting parameters within effects and amp mudelli.
- Pedali: Allow for stepping through presets, engaging the looper, and activating the tuner.
- Edit Button: Accesses the parameter editing mode.
- Looper Button: Activates the 20-second looper function.
- Pulsante di bypass: Engages or disengages the effects processing.
4.2 Cunnessioni di u pannellu posteriore

Image 2: Posteriore view of the DigiTech RP155, displaying input, output, USB, and power connections.
The rear panel houses all necessary input and output jacks for connecting your guitar, amplifier, headphones, and computer.
- INPUT: 1/4-inch mono jack for connecting your guitar.
- AMP/MIXER Switch: Optimizes output for either a guitar amplifier or a mixing console/headphones.
- LEFT (Mono) OUTPUT: 1/4-inch jack for connecting to an amplifier or mixer. Use this for mono output.
- OUTPUT DRITTA: 1/4-inch jack for stereo output when connecting to two amplifiers or a stereo mixer.
- OUTPUT DI CASCU: 1/8-inch stereo jack for private practice.
- CONTROL IN: Jack for an optional external expression pedal (not included).
- USB: Type B USB port for connecting to a computer for recording and using the X-Edit software.
- 9VAC 1.3A: Power input jack for the included AC adapter.
5. Primi passi: Cunfigurazione
Follow these steps to set up your DigiTech RP155 for the first time.
5.1 Cunnessione di putenza
- Connect the included 9VAC power adapter to the 9VAC 1.3A jack on the rear panel of the RP155.
- Plug the power adapter into a suitable AC outlet. The unit will power on automatically as there is no dedicated on/off switch.
5.2 Cunnessioni Audio
- Cunnette a vostra chitarra à u INPUT jack on the rear panel using a standard 1/4-inch instrument cable.
- À un Amppiù vivu: Cunnette u LEFT (Mono) OUTPUT jack to the input of your guitar amplifier. Set the AMP/ MIXER switch to the 'AMP' position.
- To a Mixer/PA System: Cunnette u LEFT (Mono) OUTPUT (è RIGHT OUTPUT for stereo) to the inputs of your mixer or PA system. Set the AMP/ MIXER switch to the 'MIXER' position.
- Cuffie: For silent practice, connect stereo headphones to the USCITA DI AURICULARIA Jack. U AMP/ MIXER switch should be in the 'MIXER' position for optimal headphone sound.
5.3 USB Connection (for Computer)
- Connect a USB cable (Type A to Type B, not included) from the USB port on the RP155 to an available USB port on your computer.
- Install the necessary drivers and the DigiTech X-Edit software from the official DigiTech website. This software allows for advanced preset editing and firmware updates.
6. Operating the RP155
This section details the primary functions and features of your RP155.
6.1 Basic Navigation and Presets
- Selezzione di i preimpostazioni: Use the left and right footswitches to scroll through the 100 available presets (50 factory, 50 user). The display will show the preset number.
- Aghjustà u Volume Maestru: Aduprate u dedicatu NIVELLU MAESTRO knob to control the overall output volume of the unit.
- Bypass: Press u BYPASS footswitch to toggle between the active effect chain and a dry, unprocessed signal.
6.2 Editing Effects and Amps
The RP155 allows for detailed editing of its 83 amps, cabinets, stompboxes, and effects.
- Press u EDIT button to enter editing mode.
- Use the control knobs to navigate through effect modules and adjust parameters. The display will show the current parameter and its value.
- After making changes, press and hold the STORE button (often combined with another control) to save your edited preset to a user location.
For a more intuitive editing experience, connect the RP155 to your computer and use the DigiTech X-Edit software. This graphical interface simplifies parameter adjustments and preset management.
6.3 Using the Looper
The RP155 includes a 20-second looper for creating and layering guitar phrases.
- Press u LOOPER button to activate the looper function.
- The footswitches will now control record, play, and overdub functions. Refer to the on-screen indicators for current looper status.
- To exit looper mode, press the LOOPER buttone di novu.
6.4 Usendu a macchina à ritmi
The RP155 features 60 high-quality drum patterns for practice and songwriting.
- Localizza u TAMBURI section on the front panel.
- Use the associated knob to select a drum pattern and adjust its tempo and volume.
- The drum machine can be used independently or alongside your guitar effects.
Accordatore cromaticu 6.5
A built-in chromatic tuner allows for accurate guitar tuning.
- To activate the tuner, typically press and hold both footswitches simultaneously.
- Play a single note on your guitar. The display will indicate the note and whether it is sharp or flat.
- Adjust your guitar's tuning until the display shows the note as in tune.
- To exit the tuner, press either footswitch.
6.6 USB Audio Streaming
The USB connection allows the RP155 to function as an audio interface for your computer.
- Once connected via USB and drivers are installed, the RP155 will appear as an audio input/output device in your computer's sound settings.
- You can record your guitar directly into a Digital Audio Workstation (DAW) software with the RP155's processed sound.
- The RP155 can also play back audio from your computer through its outputs, allowing you to play along with tracks.
7. Mantenimentu
Proper care will ensure the longevity and reliable performance of your RP155.
- Pulizia: Aduprate un pannu dolce è asciuttu per pulisce l'esternu di l'unità. Evitate detergenti abrasivi o solventi.
- Conservazione: When not in use, store the RP155 in a dry, cool environment, away from direct sunlight and extreme temperatures.
- Actualizazioni di firmware: Periodically check the official DigiTech website for firmware updates. Updates can be installed via the USB connection using the X-Edit software.
8. Risoluzione di prublemi
If you encounter issues with your RP155, refer to the following common problems and solutions.
- Nisun sonu:
- Ensure the power adapter is securely connected and the unit is powered on.
- Verificate tutti i cavi audio per cunnessione sicure.
- Verificate u NIVELLU MAESTRO knob is turned up.
- Cunfirmà u AMP/ MIXER switch is set correctly for your output device.
- If using headphones, ensure they are fully plugged in and the volume is adjusted.
- Sonu distortu o indesideratu:
- Check your guitar's volume and tone controls.
- Adjust the input level on the RP155 (if available, or reduce guitar output).
- Review the current preset's effect parameters, especially gain and distortion settings.
- Assicurà u AMP/ MIXER switch is correctly set. Using 'MIXER' into a guitar amp can cause unwanted coloration.
- Problemi di cunnessione USB:
- Assicuratevi chì u cavu USB sia cunnessu currettamente à e duie estremità.
- Verify that the correct USB drivers are installed on your computer. These can be found on the DigiTech support websitu.
- Pruvate una porta USB diversa nant'à u vostru urdinatore o un cavu USB differente.
- Restart your computer and the RP155.
- Footswitches Not Responding:
- Assicuratevi chì l'unità hè alimentata.
- If in a specific mode (e.g., Looper or Tuner), the footswitches may have different functions. Exit these modes to return to preset navigation.
If problems persist, contact DigiTech customer support for further assistance.
9. Specificazioni
| Feature | Specificazione |
|---|---|
| Numeru di mudellu di l'articulu | RP 155 |
| Pesu di l'articulu | 3.2 liri |
| Dimensioni di u produttu | 8.75 x 2.75 x 10.75 inch |
| Interfaccia Hardware | USB |
| Formatu di Signal | Analogicu |
| Fonte d'energia | Corded Electric |
| Voltage | 9 Volts |
| Looper Duration | 20 seconde |
| Modelli di batteria | 60 |
| Amps, Cabinets, Stompboxes & Effects | 83 |
| Presets | 100 (50 Factory, 50 User) |
10. Garanzia infurmazione
DigiTech products are designed for reliability and performance. For detailed warranty information, including terms, conditions, and registration, please refer to the warranty card included with your product or visit the official DigiTech websitu. Conservate a vostra prova d'acquistu per e richieste di garanzia.
11. Assistenza Clienti
For additional assistance, technical support, or to download the latest drivers and X-Edit software, please visit the official DigiTech support websitu:
You may also find helpful resources, FAQs, and community forums on the DigiTech websitu.





