So I was changing the output sample rate on my MacBook Pro in the Audio Midi Setup when I thought, do I always have to manually change the output to the song's corresponding sample rate to properly enjoy my music? The DAC doesn't automatically switch to the proper sample rate? What happens if...

Okay, I know some of you are probably thinking this is an unfair match-up. Open-back in-ear vs Closed-back, Dynamic Beryllium vs. Planar magnetic, $300 vs. $600. I know these are two very different headphones, but I would like to know your guys opinions, especially those who have tried or own...