Controls the signal input level fed to the module. Ranges from Off to 100%.
Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.
Controls the left/right positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all right).
Controls the Low Frequency Oscillator (LFO) speed of the chorus. Ranges from 0.06 to 16.0 Hz.
Adjusts the intensity of the chorus effect. High settings produce dramatic modulation, while lower settings can be used to produce a more subtle, ambient swirling. Ranges from 0 to 30 milliseconds.
DEPTH1 adjusts the intensity of chorus voices 1-4. DEPTH2 adjusts the intensity of chorus voices 5-8. Ranges from 0 to 30 milliseconds.
Controls the secondary LFO speed of chorus voices 5-8. This is a secondary oscillator for voices 5-8 that causes deviations from the oscillation path set by DEPTH2. This control can produce radical new textures when used creatively. Try setting it slightly faster or slower than SPEED. Ranges from 0.06 to 2.0 Hz.
Adjusts the intensity of the oscillation deviations produced by WANDER SPEED. WANDER DEPTH produces dramatic psycho-acoustic swirling effects when set higher than DEPTH2. Ranges from 0 to 10 milliseconds.
Selects which waveform the LFO follows. Options: sine, triangle, SP1 (special 1), and SP2 (special 2). See figure 3-4
Controls the delay time of chorus voices A and B. Higher delay time settings produce a more dramatic sweeping sound. Ranges from 0 to 60 milliseconds.
Controls the delay time of chorus voices C and D. Higher delay time settings produce a more dramatic sweeping sound. Ranges from 0 to 60 milliseconds
Controls the delay time of chorus voices E through H. Higher delay time settings produce a more dramatic sweeping sound. Ranges from 0 to 60 milliseconds
Adjusts the overall level of chorus voice A or B. Ranges from Off to 100%.

RP21D User’s Guide Section Two - Editing Functions

to create an incredible ensemble of sound. Aside from the more obvious speed and depth parameters (which adjust respectively how fast and far the sound goes out of tune), the RP21D allows you to use different waveforms. The waveform defines how it will move in and out of tune. The triangle waveform is very popular for slow, shallow chorus settings, while the sine waveform works nicely for faster, deeper settings.

When do I use Chorus? The Chorus effect is so vast in applications, an easier question would probably be “When can’t I use a Chorus. When playing the Blues, turn the Speed and Depth parameters up to produce an almost Leslie-Type effect When trying to obtain “Big” rock guitar tone, use the Chorus to thicken-up and add depth to your sound. And, any time your using a clean tone Program, the guitar is always much more lush sounding when Chorus is added.

Chorus Parameters:

Note: not all parameters listed below are available in all Chorus modules.

FX: Lvl

Dry: Lvl

Balance

Speed

Depth

Depth 1 - 2

Wander Speed

Wander Depth

WvFrm

Dly A - B

Dly C - D

Dly E - H

Out A - B

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DigiTech RP21D manual Chorus Parameters
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RP21D specifications

The DigiTech RP21D is a versatile multi-effects processor designed for guitarists seeking to expand their sound palette. With its comprehensive range of features and user-friendly interface, this device stands out as a reliable tool for both live performances and studio recordings.

At the core of the RP21D lies its extensive library of effects. Guitarists can choose from an impressive selection of up to 54 different effects, including distortion, overdrive, delay, chorus, reverb, and more. This variety allows musicians to create a unique sound that fits their style, whether they are seeking a classic rock tone or a more contemporary sound.

One of the standout features of the RP21D is its ability to store presets. With 40 user-defined patches and 40 factory presets, players can quickly recall their favorite sounds during a performance. This feature is particularly useful for guitarists who switch genres or styles frequently, as it allows for rapid transitions without the need for complex setups.

The device is equipped with a dual-analog distortion circuit, which provides a warm, tube-like tone that enhances the overall sound quality. Additionally, the RP21D includes a 24-bit A/D and D/A converter, ensuring high-resolution audio processing. This results in a cleaner and more dynamic sound, making it suitable for professional use.

The RP21D features a simple and intuitive interface, highlighted by a large LCD display that provides clear information about selected effects and parameters. Navigation is made easy with dedicated buttons for quickly adjusting settings and switching between effects.

Connectivity options are plentiful, including standard 1/4-inch inputs and outputs, as well as a built-in headphone jack for silent practice. The device also includes a direct output for connecting to a PA or recording system, making it an excellent choice for live situations and studio work alike.

In terms of power, the RP21D can be powered by either batteries or an AC adapter, offering flexibility for musicians on the go.

Overall, the DigiTech RP21D is an impressive multi-effects pedal that combines quality sound processing with a vast range of features. Whether you are a seasoned guitarist or a beginner, the RP21D offers everything needed to explore new sonic territories and refine your musical expression. Its robust construction and reliable performance make it a valuable addition to any guitarist’s rig.
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