Superlux HD668B MKII Studio Monitor Headphones, Semi-Open Back 50mm Drivers, Upgraded Diaphragm for Hi-Res Balanced Sound, Detachable Cable, Adjustable Lightweight Headband for Mixing & Mastering

Experience the evolution of precision sound with the Superlux HD668B MKII — a refined upgrade to the iconic HD668B “King of Balanced Sound.” Designed for professionals and audiophiles alike, it delivers a clear, neutral, and natural tone with powerful 50 mm drives and an upgraded diaphragm for higher resolution. The semi-open design expands to spatial depth, while the new press-and-lock headband ensures a secure and comfortable fit. Soft protein-leather earpads and a lightweight 260 g build allow hours of effortless listening. Completed with a detachable 3.5 mm twist-lock cable and 6.3 mm adapter, the HD668B MKII is perfect for mixing, monitoring, or everyday music enjoyment.

• SEMI-OPEN STUDIO MONITORING DESIGN Equipped with large 50 mm neodymium dynamic drivers, 10 Hz–30 kHz frequency response, 98 dB SPL sensitivity, and 56 Ω impedance, the HD668B MKII delivers natural, balanced sound with wide spatial imaging—ideal for mixing, mastering, or everyday listening.
• UPGRADED DIAPHRAGM FOR CLEARER, MORE DETAILED SOUND Featuring a newly engineered diaphragm that enhances transient response and tonal precision, it delivers crystal-clear mids, smooth highs, and tight, well-controlled bass for true-to-life audio reproduction.
• CLASSIC HD668B HERITAGE, MODERN REFINEMENT Built upon 15 years of acclaim as the “King of Balanced Sound,” the MKII preserves the HD668B’s legendary neutral tuning while refining clarity, dynamic range, and overall listening comfort.
• PRESS-AND-LOCK ADJUSTABLE HEADBAND Innovative manual headband adjustment replaces the previous “wing” design, providing a more secure, stable, and personalized fit for long sessions in the studio or at home.
• DETACHABLE TWIST-LOCK CABLE & LIGHTWEIGHT COMFORT Includes a removable 3.5 mm gold-plated twist-lock cable with 6.3 mm adapter. The 260 g lightweight frame, soft protein-leather earpads, and ergonomic design ensure all-day comfort and durability for professional or casual use.