hi,
the output of a device does not make it pro.
i have a mixer custom designed by Avalon Audio.
it outputs well over +30dBu and needs it's own 40volt power supply.
so, i guess, using your analogy, this is "more pro" the my rosetta?
tell me, what good is all this head room if it overloads or blows up the next piece of gear down-stream?
yes, you will loose some headroom running -10 into +4, but why would you do that?
surely, -10 should be connected to a device with the same sensitivity, then there will be no more loss of headroom.
i've A/B duet and rosetta, and when set to output the same SPL, the signals are almost identical.
the rosetta sound a little rounder maybe. it's not worth the price diff.
DR9.