Thank you for viewing. This is the KORG A4 bass multi-effects unit. A legendary model from the 90s, it features a variety of practical effects specifically for bass, including compressor/EQ/synth bass/chorus/delay/reverb. [Condition] ・Power on and sound output confirmed ・Each footswitch responds ・No issues with knobs or terminals ・Scratches and minor blemishes due to aging (please check the photos) [Included Items] ・Main unit only ※Adapter not included (DC9V) [Important Notes] ・Due to being a used/vintage piece of equipment, please refrain from purchasing if you are concerned about minor details. ・Sold as is. Recommended for those looking for a bass version of the legendary A series, for live performances, studio use, or for your collection. Instant purchase is welcome. Feel free to comment if you have any questions. #koyane instruments