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General| Type | Multi-Effects Processor |
|---|---|
| Technology | Digital |
| Power Supply | 9V DC Adapter |
| Effects | Chorus, Compression, Delay, Distortion, EQ, Flanger, Gate, Noise Reduction, Overdrive, Phaser, Pitch Shift, Reverb |
| Input | 1 x 1/4" (Instrument) |
| Output | 1/4" mono output jack |
| Headphone Output | 1 x 1/4" |
| MIDI | In/Out |
| Programmability | Fully Programmable |
| Control | Footswitches, Expression Pedal |
| Form Factor | Floor pedal unit |
| Presets | 128 (64 Factory, 64 User) |
Warns about hazardous voltages and user-serviceable parts.
Highlights 23 effects, 10 simultaneous effects, and foot controller integration.
Warns about AC voltage and voiding warranty by opening chassis.
Guide for rack mounting, audio, and foot controller connections.
Describes input, headphone, effects send/return, and stereo output jacks.
Explains remote, footswitch, and MIDI IN/OUT/THRU jacks.
How to connect instrument to GSP-21 PRO and outputs to amplifier/mixer.
Using the GSP-21 PRO in loop-through with amplifiers or mixers.
Using the GSP-21 PRO's send/return for external effects.
Steps to customize programs by modifying presets and naming them.
How to save changes to program numbers and user slots.
Explanation of compression, distortion types, and parameters.
Details on Chorus and Flanging effects and their parameters.
Explanation of delay range, level, feedback, and repeat hold.
Types of reverb: Room, Hall, Gated, Reverse.
Options for speaker simulation and MIDI communication setup.
Settings for foot controller and restoring factory presets.
How to program user speaker simulator response curves.
Linking GSP-21 PRO parameters to MIDI CCs for all programs.
Creating program-specific MIDI CC links.
Switching between Five Patch and Ten Patch modes.
Assigning programs, Repeat Hold, or bypass to patches.
Utility to reset MIDI linkages, user programs, and patches.
Explains the two operating modes and patch relationships.
How programming is done via the Utility Menu.
States no user-serviceable parts and voiding warranty by opening.
Lists key specs like input/output, impedance, THD, dimensions, weight.
Parameter ranges for Compression, Distortion, and EQ effects.
Parameter ranges for Chorus, Delay, Gated Reverb, and Mixer.
Parameter ranges for Chorus, Delay, Reverb (Rv2), and Mixer.
Parameter ranges for Chorus, Multi-Tap Delay, and Mixer.
Parameter ranges for Flanger, Multi-Tap Delay, and Mixer.
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