Audio-Technica ATH-M50x ENSO Studio Monitoring Headphones The 2025 limited-edition ATH-M50x ENSO celebrates the classic style of the original M50x, launched in 2014 - but with a twist. For the first time, we've incorporated custom engraving on the earcups and headband, reflecting both sound waves and the brushstrokes found in Japanese ink paintings of the Enso circle. And just as the Enso represents the cyclical nature of life, so the M50x ENSO returns us from a spectrum of limited-edition colors to the sophisticated black color of the original M50x. Product Highlights: Closed-back headphones with critically acclaimed sonic performance and build quality Limited edition with all-black hardware and custom white engravings A favorite of top audio engineers and pro audio reviewers 15Hz-28kHz frequency response 45mm drivers with rare-earth neodymium magnets and copper-clad aluminum wire voice coils Tuned for flat response and superior accuracy across the entire frequency range Circumaural d