I'm trying to figure out how to record my Roland FP-30 digital piano.
I have a Focusrite Scarlett Solo (2nd Gen), which has only one instrument/line input (I assume it's a balanced mono input, but then again how is it different from an unbalanced stereo since they both have 1 tip + 2 rings?)
Since the FP-30 doesn't have dedicated line outs, I can't use its L/Mono channel to connect to the interface in mono. So I have to use a headphone out for that purpose.
I'd like to know if it's okay to connect an unbalanced stereo signal to a balanced mono and what cable should I use for that?
A regular TRS to TRS stereo cable? A stereo TRS to mono TS cable (though I'm not sure it's going to be any different from using a regular stereo cable)? A stereo TRS to two mono TS splitter (and connect only left channel to the interface)? Will there be any difference between these cables?
I'm asking all that because I heard that it's not safe to connect a stereo output to a mono input without a dedicated adapter that utilizes resistors to prevent back-feeding (have no idea what that adapter is), otherwise there could be damage. It's also good to know these things to avoid problems down the road.
I was also thinking about connecting directly to my laptop's Mic in port (also mono), will it be any better/worse than using my Focusrite Scarlett Solo?
Thanks a lot in advance!