Hi folks,

I recently bought the Zoom R20 and I have a long list of questions but will try to address them on at a time in separate posts.  Hopefully I am in the right place.

So, firstly, I just bought the R20 and when I plug in to the first combo input - which is incredibly tight to both insert and remove the cable - I am hearing a loud hum.  Other end of the cable is plugged into my Taylor 322e 12-fret guitar.

I have the guitar volume turned to the mid point on all the knobs and the R20 seems to need to have the peak rotated almost to the max to hear the guitar in my headphones but then the hum also gets very loud and not useable.  If I turn it down where the hum is less, then the recording has very low volume and the waveforms are too small for a good capture.

Any suggestions to help with this?  I have not tested it with an electric yet.  

I have the R20 plugged directly into the wall power outlet.  I was thinking I might try it using batter power instead to see if that helps.  Any other suggestions that you might have?  Do I need a DI or anything else to eliminate the hum?

Thanks,

Larry