Zoom V3 vocal processor demo for harmonica and vocals

[@MrEagleeye58]

You need to add delay echo to the harmonica with another device. The V6 cannot do this well

[@johngrahammusic0]

You have three knobs on the right side of the V3, namely. compressor, delay and reverb. They work quite well for harmonica actually. Idk anything about the V6.