What are the dimensions of Duet 2 (USB)? Chris February 23, 2021 01:38 Updated Duet2 dimensions: 4.05in wide x 6.37in tall x .976in deep without knob 1.39in deep with knob Related articles How do I route Quartet preamps directly to the outputs? Use my Quartet as an outboard analog preamp? Is Duet 2 (USB) compatible with Pro Tools? Comments 0 comments Article is closed for comments.