I had the exact same impressions of hearing the high res remastered, but non- MQA, Beatles Sgt. Pepper as you did - it offered so much new terrain. The remastered White album even more so, with the Esher sessions and outtakes really allowing me to understand and feel the music and creative process nearly as well as Sgt. Pepper. I'm hoping Giles Martin continues his magic and remasters Magical Mystery Tour, Abbey Road, Let It Be, Revolver and Rubber Soul.
I have only listened to the 2 remastered Beatles albums through my 2.2s and in the 3.5s without the equalizer. I have the EQ in one of the 2 tape inputs of my integrated amp but I'm leery of connecting my DAP into the other tape input with the EQ in place. Can I safely do that? Before the 3.5s that's how I connected the DAP, but even using the line out the volume was so low I really had to crank the integrated up. If I can't use the second tape input I'll just disconnect the EQ when I want to listen to music on the DAP.
Regarding the midranges, how careful do I have to be with the volume, especially with the EQ? I certainly don't want to blow them, and although I rarely listen with peaks over 80 db, never over 85 yet, the bass on some operas, Mahler Symphonies, Stravinsky's Rite of Spring (my eternal gratitude to former NYP pianist Paul Jacobs for this, my college intro to western music professor) and Japanese taiko drums can be thunderous. It doesn't help that the integrated only has 80 wpc into 4 ohms. I hope to be able to address that in the not too, too distant future. The guidance as to what to consider offered here has been, and continues to be, very helpful. Thank you all.