Thanks all, great input. I appreciate it. I’ve actually managed to arrange an im home demo tomorrow between the 590 and the 390 so we’ll see.
@jjss49 thanks for your excellent take! Btw, the MQA decode through only USB has apparently been solved for about a year. The newer 590s with a standby function also will decode MQA through all inputs, just like a 390. (Not that I really care, as a Qobuz user…)