The DigiTech RP155 guitar multi-effects pedal packs an astounding array of great amps, cabinets, and effects into its compact metal chassis, while giving you the capability to record directly or run through your live rig just the way you want. it’s loaded with 83 Amps, Cabinets, and Effects, USB Connectivity, Onboard Drum Machine, Tuner, Tone/Effects Libraries, and Looper. You can start jamming with the pre-programmed patches right away. There are 50 permanant & 50 that you can alter to make your own sound.
According to several user reviews of Digitech RP155 multi-fx, some users have praised it for the Excellent sound quality; USB audio interface functionality, 24-bit depth; Possibility to edit patches on a computer through the X-EDIT software; Possibility to connect an external expression pedal to control wah, Whammy effects. But some users also have complained for the Takes Some Time To Learn; the X-EDIT takes a lot of CPU time and its interface is sluggish; footswitch mechanism doesn’t seem to be durable.
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To restoring the factory settings of Digitech RP155 multi-fx, first power on while simultaneously holding the Store button until “FR” appears in the display and then release the button. Press and hold the Store button again for a few seconds until “RS” appears in the display and release.
Warning! This procedure will erase all custom User presets and return all of the settings to the values when the Digitech RP155 was shipped from the factory. Hopefully the article of “Restoring The Digitech RP155 To Factory Settings” was useful.
Reference: Digitech RP155 Manual