sending the DAW playback via the aux in on the kemper so you can monitor via kemper rather than the interface's headphone out (addressing your point 3) above). Don't know if the aux in is suitable for line level, though.
Just tried this, many thanks. They're suitable for line level indeed. Not sure that the sound quality has improved, though.
most other Vendors use cheap amps for HP out thats why they sound bad.
In my Opinion the Analog outs on there KPA carry the same Sound Quality
as the HP out, for me they sound better than SPDIF out
Strangely enough when I play the song back through the KPA HP output, the sound quality does not seem to improve.
Interesting what you mention about analog outs beating the SPDIF's. My ears are not too sharp to hear any difference between the two.