Good advice from Stanron there. Is there a "Peak" signal on your R16 - i.e. something that shows as a light going from green (safe) to red (peaking/distorted)? Just curious - though, from your YouTube recording, which is nice and clear, it all sounds OK to me.

However, you would certainly have a little more control over the track volumes if you mixed them down on the computer.

When I've used tracks from an R16 (one of our band members has one), he gives me a memory card for me to download the .wav files - one per instrument - into my computer. I then load each instrument's .wav file as a track into Garageband, synch them up, and mix from there. Audacity will also do as a mixer, though I personally prefer Garageband on my Mac.