MoonDrop Cosmo Monitor 500nm 100mm Diameter Large Replaceable Cable FDT Full Drive Frequency Response Free Headphones, Ultra-Thin Low-Tension

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. The ultra-thin, low-tension nano-level diaphragm substrate, approximately 500nm thick, delivers a wider frequency range, deeper bass reproduction, and a faster response time for detailed sound. This results in unparalleled sound quality. The highly elastic pure silver drive circuit, made by bonding ultra-thin silver film, ensures high efficiency, low heat loss, and uniform force distribution. "TBT Tension Balancing Tech" is used to secondary balance surface tension, significantly reducing large dynamic distortion and providing more stable, high-quality sound. The acoustic development team at Suigetsu's research and development department used a dedicated high-performance computer and the expensive large-scale finite element simulation system Comsol to perform three-way simulations of "electro-mechanics-acoustics," which greatly optimized the acoustic structure design capabilities, reduced the trial and error time for experiments, and created the basic conditions for the research and development team to pursue the limits of product performance. Cosmo uses an extra-large 100mm diameter diaphragm component and also features the FDT full-surface drive technology unique to the product series. This ensures that the entire diaphragm is evenly positioned in the magnetic field and uniformly covered by an effective drive circuit, achieving low-resolution vibrations that far exceed those of conventional planar magnetic headphones and are comparable to electrostatic headphones. Cosmo innovatively adds independent 3D structured high-frequency phase-control waveguide components on both sides of the diaphragm, significantly reducing the cancellation of mid- and high-frequency sound waves caused by reflection and diffraction within the front and rear cavities, making the treble timbre smoother and more delicate, and the sound image wider and more realistic. The "Cosmo" planar magnetic headphones use 36 extra-large N52 rod-shaped neodymium magnets to form a planar magnetic field that covers the entire diaphragm, and after optimization using FEA finite element simulation, ensures uniform and efficient distribution of the magnetic field across the vibrating surface of the diaphragm.The unit case-integrated structure creates the conditions for spatially stacking the extra-large FDT diaphragm and ultra-large magnetic path that can completely cover the entire vibration area with a uniform magnetic field. By applying electroacoustic technology and a more scientific, patented acoustic structure design, "Cosmo" achieves acoustic performance that rivals that of previous high-end flagship headphones. Even at high sound pressures exceeding 1 Pa, it achieves ultra-low nonlinear distortion of less than 0.05% across the entire frequency range, delivering pure, clear tones and a relaxed, natural, and stable sound quality. The Cosmo features a universal dual 3.5mm re-cable design with an angled connection, allowing you to freely change cables to suit your needs in various situations. The included cable is a 4.4mm plug OCC balanced cable, and a 4.4mm to 6.35mm conversion cable is also included. Sound pressure sensitivity: 100dB/Vrms (@1kHz) Impedance: 15Ω±15% (@1kHz) Playback frequency range: 13Hz-58kHz (IEC61094, Free Field) Effective frequency range: 20Hz-20kHz (IEC60318-4, -3dB) Connector: 3.5mm 3-pole plug Input plug: 4.4mm 5-pole balanced plug [Package Contents & Warranty Service] Headphones, 4.4mm 5-pole balanced cable, 4.4mm to 6.3mm adapter, instruction manual, warranty card, product quality inspection certificate. One-year warranty service included. MoonDrop Cosmo Monitor Headphones, 500nm Ultra-Thin Low-Tension Diaphragm, Wired, 100mm Diameter Large Diaphragm, Over-Ear Headphones, 3.5mm Replaceable Cable Design, FDT Full Drive Technology, 4.4mm, Frequency Response 13Hz-58kHz (IEC61094, Free Field)