RP21D User’s Guide Section Two - Editing Functions

Depth

This parameter controls the amount of modulation depth in the phaser. Range is 0 to 100%.

Feedback

This parameter controls amount of feedback in the phaser effect. Range is 0 to 100%.

Output A-B

This parameter sets output of the pedal phaser effect. Range is from 0 to 100%.

Pan A-B

This parameter sets pan of the pedal Phaser Range is from 0 to 100%.

Rotary Speaker Simulator

The Rotary Speaker Simulator allows you to emulate the classic rotating speaker sound, without the chiropractic problems that come with moving bulky speaker cabinets. The Rotary speaker is directly responsible for some of the most unique sounds in music. The applications for this effect are so diverse, it can be used to achieve sounds ranging from the Allman Brothers Band to the legendary Stevie Ray Vaughan.

A unique parameter in the Rotating Speaker simulation is the Acceleration parameter. This parameter is used emulate the the time that it takes to get the Speaker up and spinning at full speed. The parameter can be assigned to a footswitch or the expression pedal so you can control the acceleration speed.

Rotary Speaker Simulator Parameters:

FX: Lvl

Controls the signal input level fed to the Module. Ranges from Off to 100%.

Dry: Lvl

Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.

Balance

Controls the positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all right)

Mode

Selects which speed mode the Rotor and Horn are in. Settings are fast or slow.

Spread

Sets the horn stereo microphone spread. Ranges from 0 to 100%.

H - R: Level

Sets the overall level of the Rotor or Horn. Ranges from Off to 100%.

Slo - Fast Hrn Speed Controls the Low Frequency Oscillator (LFO) speed of the Horn. Ranges from 0.06 to 16.0 Hz.

Slo - Fast Hrn Depth Controls the intensity of the rotating effect. Ranges from 0 to 30 milliseconds.

Slo - Fast Hrn Doppler Sets the amount of shifted pitch heard in the Horn. Ranges from 0 to 50 milliseconds.

Slo - Fast Rtr Speed Controls the Low Frequency Oscillator (LFO) speed of the Rotor. Ranges from 0.06 to 16.0 Hz.

Slo - Fast Rtr Depth Controls the intensity of the rotating effect. Ranges from 0 to 30 milliseconds.

X-Over

Selects the frequency where the signal is split between the Horn and Rotor. Ranges from 25Hz to 20kHz.

Acceleration: H - R Sets the amount of time that the Rotor and Horn take to come up to their full rotating speed. Ranges from 0 to 10 seconds.

Tremolo and Auto-Panner

Look out, because the popular Tremolo and Auto panner effects of the 50’s and 60’s are back with a vengeance. These effects that revolu- tionized “Surf-Style” music can be heard all over the air waves in the 90’s. Tremolos and auto panners are similar to one another in that they both use an LFO to modulate input levels to produce vibrato effects.

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DigiTech RP21D manual Tremolo and Auto-Panner, Feedback, Rotary Speaker Simulator Parameters, Over
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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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