Active Instruments?

Hi,

So I searched online and looked through the user manual & searched forums but found nothing. I’m simply wondering if it is safe to plug an “active” line into either or both of the ur22mk2 combo-inputs. Nothing crazy just a acoustic electric guitar that already has it’s own battery powered pre-amp.
I’m shopping for a new acoustic and I need to know if I can get one with active electronics? Hope that makes sense.

Thanks very much.

I’m a little surprised nobody could answer if it’s ok to plug an electric acoustic into this unit. I got the answer elsewhere so It’s fine.