can we bypass the OPamp 426? how?Cut out the internal amp by adding a more neutral portable amp to the line-out. It's the amp that's overly warm in my experience. Or, use EQ.
if I try using UAPP via USB to NX4DSD, the noise is become worse.
that's why I prefer LO output from X5iii to amp....
plus a glitch that USB output to NX4DSD can not when using Spotify.... or there's another way...
enlighten me plz