For better or worse, the left side of the Edirol R-09Hr is practically indistinguishable from its right side. Fortunately, white lettering above each feature help to clue you in on the purpose of each button and plug. On this side, we have buttons for input level adjustment, and 3.5mm jacks for external microphones or line-input.
Photo credit: CNET Networks/Corinne Schulze