• Nanoscale Ultra-thin Diaphragm. The ultra-thin low-tension diaphragm substrate with a thickness of approx. 500nm meets the requirements of a wider frequency band, lower dive, and faster detail response speed, delivering exceptional high quality. 
• Highly Elastic Ultra-thin Pure Silver Etched Circuit. The highly elastic pure silver circuit made of ultra-thin silver film ensures high efficiency/low heat loss and uniform stress. 
• TBT Diaphragm secondary Stress Balance Technology. With the help ofTBT (Tension Balancing Technology) diaphragm surface tension is subjected to secondary balancing processing, thus greatly eliminating large dynamic distortion and ensuring more stable high quality. 
• Large 100mm Diaphragm. In contrast to traditional planar magnetic headphones, Cosmo adopts an ultra-large 100mm-diameter diaphragm incorporatinc Full Drive Technology (FDT). The entire vibrating surface of the diaphragm is evenly covered with effective driving circuits and enclosed in a magnetic field. This technology results in low-split vibration far superior to traditional planar magnetic headphones and comparable to that of electrostatics. 
• 3D Structure of Front and Rear Cavity. High-frequency Phase. Control Waveguide. Cosmo innovatively adds three-dimensional independent high-frequency phase control waveguide components on both sides of the diaphragm to greatly reduce the phase cancellation caused by reflection and diffraction of medium-high frequency and high-frequency sound waves in the front and rear cavities, so that the treble tone is smoother and more delicate, and the sound image is more open and real. 
• Universal Dual 3.5mm Interchangeable Design. Cosmo adopts a universal double 3.5mm interchangeable cable design with an inclined angle, allowing users to freely change cables to meet different needs.

Specification

• Model: COSMO 100mm Nanoscale Ultra-thin Flagship Planar Headphone
• Sensitivity: 100dB/Vrms (@1kHz)
• Impedance: 15Ω±15% (@1kHz)
• Frequency Range: 13Hz- 58kHz (IEC61094, Free Field)
• Effective Frequency Range: 20Hz- 20kHz (IEC60318-4, -3dB)
• Headphone Jack: 3.5mm
• Cable Plug: 4.4mm

Package

• COSMO
•  4.4mm Balanced Cable
• 4.4mm to 6.35mm Adapter
• Manual
• Anime Card
• Certificate
• Service Card