I still use the same DP 03 I have had for years. Haven't yet found a good reason to change. Maybe the 12 will be it. Notice in the videos he is mastering with the dials...even multi band compression. This could be huge. Also, he demonstates how to import a track directly from a computer. Another bigly. Also. more power and larger SD. Have you had the unit shut down and complain it is being overworked? I have, many times.
Link: (Feel Free to Use)
Biab for WIN 2020 -- Win 10 64bit -- Reaper/Audacity
Zoom R-16 -- Tascam DP-03-SD -- SoundTap -- Crescendo --