I have a JHS colour box that I love for vocals, bass, and guitar. I own both the pedal and 500 series. It has lots of tone-shaping options and sounds like a Neve. I don’t record much rap vocals, but I wouldn’t hesitate to use it for that. However, I’m not sure it would be my first choice for pairing with an OP-1 (I’d search for something smaller and with additional effects). I don’t have any experience with the other units.

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