If you're patient, GNSC modded Opus 21's pop up used here on A'gon for about the price of a new one, or less. The unmodded Opus is excellent, the modded version is stellar. Sorry, I'm not familiar with Esoteric.
Esoteric SA-10 vs Opus 21
These players are in the same price category, so I feel that a comparison is far.
Thanks
Mike
Thanks
Mike