Sennheiser HD 660S2

I was worried open-back headphones would leak too much sound, but the precision and relaxed soundstage here let me hear details in old recordings I’ve never noticed before. The ear pads are so plush I forget I’m wearing them after an hour.

Coming from my old open-backs, the relaxed sound signature here is a revelation — so easy to listen to for hours without fatigue. The velour earpads make long sessions feel like nothing at all.

The sub bass on these really surprised me — it adds a layer of depth I wasn't expecting from open-back headphones, and the relaxed sound signature makes long listening sessions effortless.