With more listening comes (hopefully) progressive insight.
- The K11 R2R really is a really good HP amp and capable DAC.
- Different gain and oversampling settings have noticeably different effects, so it's worth getting to know them.
- Unfortunately i can't test the balanced out at the moment because i have no 4.4 plug, so impossible for me to say if that makes a difference.
- Headphone pairing does matter a lot - unsurprisingly. My closed HD620s are not ideal for sound signature. A brighter, more open pair will very likely sound better.
- Van Halen - not the best source on Tidal - sounds very congested
- Tool, Opeth, Aerosmith (not too different from Van Halen) have much more depth and air
- London Grammar: wonderful Hannah Reid vocals on this setup
- Genesis, Foreigner lack punch, feel quite lean
- Daft Punk: undecided... actually sounds better on speakers than on headphones (unexpected)
- Tom McRae (big fan!): very open and uncomplicated recording, which works really well for me
- Springsteen: all hi-res on Tidal, but not marked as remastered... very balanced, excellent

