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Getting Started 

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Connections; Tuning; Rhythm mode 

2-3 

Phrase Trainer mode 

AUX Pitch mode; Editing and Saving a Custom Program 

 

 EasyStart

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The PX4D and 

PX4A

 are personal effect 

processors utilizing Korg’s award-winning 
REMS Modeling Technology, providing the 
most accurate and varied collection of vintage 
amp, cabinet, and effect models available! 

 

PX4D Features: 

 

15 of the world’s most-coveted guitar amp models, 
and 10 most -desired bass amp models 

 

158 effect variations – 7 at a time (Dynamics, Amp, 
Cabinet, Modulation, Delay, Reverb and Noise 
Reduction) 

 

Guitar pickup modeling with four types available 

 

16 Guitar Synth effects 

 

Feedbacker effect with four modes 

 

Fretless Bass Simulator  

 

PX4A Features: 

 

13 microphone and body models including 
Resonator, Steel and Nylon models  

 

82 effect variations – eight at a time including Notch 
Filter (feedback eliminator) 

 

 

PX4D and 

PX4A

 Shared Features: 

 

Four real-time knobs for quick and easy editing! 

 

Intelligent Pitch Shifter, Rotary Speaker, Filter, Talk Simulation and more! 

 

Rhythm and Bass patterns (100 patterns) and progressions with Selectable Bass Key; 16 different 
rhythm and bass patterns may be chained together for songs  

 

Phrase Trainer, with up to 32 seconds of loop-able and pitch-adjustable recording time makes learning 
riffs easy! 

 

Rhythms can be recorded with guitar for even more practicing possibilities 

 

Integrated Korg Chromatic tuner  

 

 

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