The Digitech Guitar Signal Processor GSP 21 PRO is a vintage effects pedal made in the United States. This multi-effects pedal allows guitarists to access a wide range of tones and effects, making it a versatile tool for creating unique and dynamic soundscapes. With the brand's reputation for quality and innovation, the GSP 21 PRO is sure to be a valuable addition to any musician's arsenal. Powers on but that’s all the testing could do all buttons seem to work as they should. Buying for parts or repair no returns Bin a120
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