I have some HD 6XX Sennheiser and a pair of Audio Technica M50s. I can most definitely notice a difference when playing my piano (Yamaha P125) and listening to HD streaming on Spotify. The Sennheisers are reference headphones, designed for studio monitoring. They provide more realistic sound quality. Having open-backed headphones with HD sound in a relatively quiet place makes for a very immersive listening experience, I've found. Closed-backed headphones are great for sound-isolation while lacking the same fidelity of the open-backed counterparts.
Of course, that's all subjective. ¯\(ツ)/¯
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.