First test with the new Zoom H6 portable audio recorder out of the box plugged into my Rode Procaster microphone . (No EQ applied, so it might sound low or flat.) I was not able to use this mic directly with the Zoom H4n without adding at least a Cloud Lifter in between.
The Rode Procaster will sound better when used with the the Tascam DR-60D, but now it appears this Zoom H6 has become my favorite portable audio recorder. I'm sure people will complain about not being to lock the input gain dials on the H6, but compared to the H4n, I prefer the dials over the digital input adjustments on the H4n.
BTW, if you're in the Bay Area and looking for a Tascam DR-60D, i've got a barely used one for sale..