I've found my Black Ice Fusion F35 w/ KT88s, Denafrips Aries II, Tekton Lores set up with Tidal off of a Macbook to be my sweat spot. Absolutely incredible listening experience with all genres over the last year or so. Have been contemplating the KT150s though as my move from EL34s was appreciable.
In comparison, my daily listening is through a Sansui G9000, Schiit Modi and Triangle BRO3 so I can bass up with loudness for low level listening; quite a bit different but still a very pleasing experience even if I'm only using about a third of the volume knob.