The HD668B has been a classic in online forums for 15 years, earning the title of King of Balanced and Authentic Sound. Building on this, Superlux introduces the HD668BMKII, which retains the classic design while adding innovative features for an enhanced listening experience. With a new diaphragm material, the HD668BMKII significantly improves sound resolution, delivering richer, more detailed audio. It maintains a neutral, balanced tuning with clear mids, smooth highs, and strong bass that doesn’t overwhelm other frequencies. The redesigned structure ensures a comfortable fit for long periods, whether you're working or relaxing. Lightweight and snug, it reduces pressure, making it ideal for extended wear. Combining professional sound quality with user-friendly operation, the HD668BMKII is perfect for both studio work and personal music enjoyment.