If you’re looking for vintage guitar-synth sounds, the WP-20G Wave Processor is for you! This compact pedal gives GK-equipped guitarists six synth-type waveforms plus modulation and delay effects. 

• Fat synth sounds and effects in a compact pedal for GK-equipped guitars
• Provides 6 synth-type waves and effects—Saw Lead, Square, Ring Mod, Slow Gear, Sitar and Acoustic
• 11 chorus and delay effects, plus Color and Level knobs for further tweaking
• Rugged, dual-pedal design with simple, knob-based controls

If you’re looking for something different, or maybe you lust after those vintage guitar-synth sounds, the BOSS WP-20G Wave Processor is for you. With a choice of six different waveforms like Saw Lead, Square, Ring Mod, Slow Gear and more, all it takes is your GK-ready guitar to create a tonal powerhouse complete with old-school knobs. 

In true vintage fashion, the WP-20G provides 11 different kinds of chorus and delay, which can be turned on and off using one of the two built-in pedals. These effects are great for modulation and doubling, while additional tonal control is provided by a Color knob. And with the WP-20G’s Level knob, you can blend dry guitar with the effected sound to your liking. 

MUST HAVE THE GK PICKUP SYSTEM, THIS WILL BE USELESS FOR A NORMAL GUITAR

I am not sure what the hole on the top side was for, was like that when received. Knobs are new/not original

Check out my other listings for more cool vintage, boutique, Boss, Multi Effect, and other guitar pedals! Any other pictures needed or questions please ask!