MOONDROP COSMO 100mm Planar Magnetic Flagship Full-Size Over-Ear Open-Back Headphone

Regular price: $7,989.39
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Sale price: $7,989.39

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Product Highlights

• 100mm Full-Drive Planar Magnetic Driver with patented FDT Technology for electrostatic-like treble clarity and full-surface diaphragm actuation

• 500nm Nanoscale Ultra-Thin Diaphragm for lightning-fast transient response and extraordinary microdetail retrieval across 13Hz-58kHz

• Pure Silver Etched Circuit with TBT (Tension Balancing Technology) eliminates distortion and ensures long-term audio consistency

• N52 Neodymium Magnet Array optimized via finite element analysis (FEA) for perfectly uniform magnetic field distribution

• Dual-Cavity High-Frequency Phase Control Waveguide for precise spatial imaging and expansive three-dimensional soundstage

• Integrated Driver-Cavity Structure with lightweight, high-strength design for optimal acoustic performance and comfort

• Moondrop VDSF Target Response tuning for a natural, open, and laid-back sound signature with ultra-low nonlinear distortion

• Universal Dual 3.5mm Interchangeable Cable System with 4.4mm single-crystal copper balanced cable and 6.35mm adapter

• Easy Driveability: 15 Ohm impedance with 100 dB/Vrms sensitivity for excellent performance across a wide range of amplifiers

• Open-Back Full-Size Over-Ear Design with premium lightweight construction for fatigue-free extended listening

Flagship 100mm Planar Magnetic Headphone with FDT Full-Drive Technology

The MOONDROP COSMO represents the pinnacle of planar magnetic headphone engineering. Built around a full-sized 100mm planar magnetic driver featuring patented FDT (Full-Drive Technology), this flagship open-back headphone delivers electrostatic-like treble clarity, ultra-low nonlinear distortion, and an expansive soundstage. From the nanoscale 500nm ultra-thin diaphragm to the pure silver etched circuit and N52 magnet array, every component has been precision-engineered for the discerning audiophile who demands reference-grade performance.

100mm Full-Drive Planar Magnetic Driver

At the heart of the COSMO lies a flagship 100mm planar magnetic driver equipped with MOONDROP's patented FDT (Full-Drive Technology). Unlike conventional planar designs that energize only partial sections of the diaphragm, FDT extends the active driving circuit across virtually the entire vibrating surface. Combined with a precisely uniform magnetic field that encapsulates the full diaphragm area, this full-surface actuation eliminates split vibrations and delivers treble performance that rivals electrostatic headphones. The result: exceptional clarity, smooth wide-band response, and vanishingly low nonlinear distortion.

500nm Ultra-Thin Nanoscale Diaphragm

Speed and resolution begin with low mass, and the COSMO's diaphragm measures an astonishing 500 nanometers in thickness. This sub-micron membrane is dramatically thinner than those found in traditional dynamic driver headphones, enabling significantly faster transient response and broader frequency extension. Microdetail retrieval is extraordinary — the texture of bowed strings, the shimmer of cymbals, the breath behind a vocal — every nuance arrives intact and unblurred across a frequency range extending from 13Hz to 58kHz.

Pure Silver Etched Circuit with TBT Stress Balance

The COSMO employs a highly elastic, ultra-thin pure silver etched circuit that maximizes electrical efficiency and minimizes heat loss. Silver's superior conductivity lowers resistance, enabling audio signals to transmit with enhanced clarity and strength. MOONDROP's proprietary TBT (Tension Balancing Technology) works in concert with this circuit to distribute mechanical stress evenly across the diaphragm surface, eliminating localized strain points that cause large dynamic distortion. This dual approach ensures stable, high-quality sound reproduction with a prolonged operational lifespan.

N52 Neodymium Magnet Array with FEA Optimization

Driving the 100mm diaphragm is a powerful N52-grade neodymium magnet array — the strongest grade commercially available. The magnetic structure was designed using large-scale finite element analysis (FEA) software to model field distribution, refine magnet geometry, and eliminate flux density variations. This computational optimization ensures every square millimeter of the diaphragm experiences identical driving force, contributing to the COSMO's ultra-low nonlinear distortion and stable performance at all playback levels.

Dual-Cavity High-Frequency Phase Control Waveguide

Precision sound imaging requires precise phase control. The COSMO incorporates a dual-cavity high-frequency phase control waveguide structure that manipulates acoustic wave propagation to achieve accurate spatial imaging and a well-defined soundstage. This advanced acoustic design ensures that instruments and voices are positioned with pinpoint accuracy within a naturally expansive three-dimensional space.

Integrated Driver-Cavity Structure

The COSMO's driver and magnetic system are housed within an integrated driver-cavity structure engineered for lightweight rigidity. This design maintains the precise alignment of the large magnetic circuit and diaphragm while reducing overall weight for improved comfort. The uniform magnetic field covers the entire diaphragm vibrating area, ensuring consistent acoustic performance without the structural resonance that can color the sound.

Moondrop VDSF Target Response

The COSMO is tuned to MOONDROP's proprietary VDSF (Virtual Diffuse Sound Field) target response curve, developed through years of acoustic research. This tuning delivers a natural, open, and laid-back sound signature with a smooth wide-band response and ultra-low nonlinear distortion. The result is pure, uncolored audio reproduction across the entire frequency range, making the COSMO equally capable with complex orchestral works and intimate acoustic performances.

Universal Dual 3.5mm Interchangeable Cable System

Versatility meets convenience with the COSMO's universal dual 3.5mm interchangeable cable design. Angled earcup connectors provide ergonomic cable routing while allowing easy cable swaps to suit various audio setups. The included 4.4mm balanced cable is crafted from high-purity single-crystal copper for superior conductivity and audio clarity. A 4.4mm to 6.35mm single-ended adapter extends compatibility to virtually any headphone amplifier without requiring additional cables.

Specifications