I just got a Boss ME 80 and I'm wondering if I can, somehow, use that and my Boss RC 30 loop station at the same time. I know the ME 80 has a looper option but it's not as powerful as the RC 30. I try connecting it in different ways but I can get it to work.
All you need to do is run your instrument into the multi fx processor, the multi fx into the loop pedal, and the loop pedal into your amp.
Guitar -> ME 80 -> RC 30 -> Amp
If you want to record the 'dry' signal for looping - put the RC 30 before the ME 80 in the chain. Note that the entire loop is filtered through the multi fx at that point; you will not be able to record added effects.
Most pedals use the L output for mono if you aren't using stereo L/R output.
If this doesn't work - test that both units are functioning.
Guitar -> ME 80 -> Amp
Guitar -> RC 30 -> Amp
If both units work individually - be positive your chain input/output is correct. Input is the signal from your instrument, output is the signal going into your amp.
Guitar -> in ME 80; out ME 80 -> in RC 30; out RC 30 -> Amp