The Zoom A1 Four multi-effects processor offers over 80 built-in effects specially engineered for acoustic guitar, saxophone, trumpet, violin, harmonica and upright bass. It features 40 preset patches, and up to five effects can be used simultaneously, chained together in any order.

For expanding your creativity even more, the A1 Four features a built-in looper for recording and playing back loops up to 30 seconds. Plus, there are 68 built-in rhythm patterns tailored for unplugged styles of music.