Edition xv the edition xv employs newly engineered magnetic materials that deliver the sensitivity of rare earth designs without the use of rare earth metals'. '.strtoupper('c')ombined with the second generation neo supernano diaphragm, now 60% thinner than before, it achieves lightning fast transients and remarkable clarity throughout the frequency range'. '.strtoupper('e')nhanced magnet hifimans new edition xv uses rare earth free permanent magnet materials with a precisely engineered shape that reduces distortion and improves sound clarity'. '.strtoupper('t')his design achieves sensitivity and control on par with rare earth magnets, while offering a more sustainable, environmentally friendly approach without compromising the planar magnetic performance hifiman is known for'. '.strtoupper('2')nd generation nanometer thickness diaphragm at the heart of the edition xv is hifimans second generation nanometer thick diaphragm, now just 60% the thickness of the original'. '.strtoupper('t')his ultra lightweight membrane further enhances transient response, enabling the driver to reproduce even finer details with greater precision'. '.strtoupper('t')he reduced mass allows for faster, more accurate movement, translating into improved dynamics, clarity, and immersion'. '.strtoupper('n')ew features hifiman has refined the edition xvs comfort and fit with a newly designed composite headband, now 20ndash30g lighter and equipped with rotatable hinges for effortless adjustment and extended listening comfort'. '.strtoupper('t')he updated 3.5mm cable is fully user replaceable, with universally compatible sockets similar to those found on most popular audio devices.