I'm putting together a small setup with
- a condenser mic (requiring +48 phantom power)
- a Yamaha electric piano with a 6.3 stereo "headphone" output and MIDI IN+OUT
- Steinberg UR22 MK2 (with 2x XLR/6.3 IN with optional +48 and MIDI IN+OUT)
The safe way I guess would be to only use MIDI on the piano but I'm wondering if it's dangerous to take the output from the 6,3 headphone output of the piano instead (with a 6.3-6.3 or 6.3-XLR cable) and plug it into the Steinberg while +48v is turned on?