NF AUDIO NA2+ Dual Cavity Dynamic Aluminum HiFi Deep Bass Earphones, Monitor, In-Ear, 5N Silver Plated, OFC 2-Pin 0.78mm CNC Re-cableable Earphones

Optimized dual magnetic circuit, dual cavity, and electrically adjustable coil unit for music listening. The sound is warm and silky smooth. The bandwidth is 9-40kHz, the sound field is excellent, the resolution is exquisite, and the timbre is captivating. Integrated Tuning Circuit: Circuit adjustments expand the possibilities for moving the coil. The MC2L-10M uses a higher-precision integrated tuning PCB board for greater stability, reliability, and better timbre. Dual Cavity Design: Based on the traditional moving coil unit, the MC2L-10M adds a rear cavity for more precise air pressure control, allowing the diaphragm to move more smoothly, resulting in a more magnificent sound field and richer sound details. 5u Polymer Composite Diaphragm: Unlike popular high-rigidity diaphragms on the market, the MC2L-10M uses a lightweight, medium-rigidity, high-elasticity polymer composite diaphragm for sound quality. The aperture pattern is optimized, improving distortion characteristics and better conveying musical emotion. Cable: Litz structure 5N oxygen-free copper silver-plated cable. The cable core reaches 280, providing much lower impedance.