Diamond Cantilever In a category first for HANA, the Umami Black incorporates a diamond cantilever, the hardest possible material, ideal for signal transfer. High-Efficiency “OKD” Moving Coil Generator Another category first, the Umami Black uses the newly developed “OKD” with the world’s first “Integrated Pole Piece and Rear Yoke” and Inverted U-shaped Front Yoke, optimizing energy transfer from the diamond cantilever. Inverted U Front Yoke The U-shaped (bifurcated) inverted front yoke is engineered for both mechanical resonance control and magnetic field alignment, while also providing precise support for the diamond cantilever. High-Power Rare Earth Magnet
Unique to the Umami Black, the rare earth neodymium-iron-boron (NdFeB) magnet is used for the high-efficiency generator, delivering superior energy conversion. Hybrid Carbon Armature
A 2mm square hybrid Carbon permalloy armature, comprising 78% carbon-infused nickel-iron, is precisely hand-wound with 30-micron, 4N high-purity copper wire on Excel’s proprietary machinery. This ultra-light moving coil has an output of 0.3mV and a 5 ohm impedance. Special Urushi Enameled Finish The HANA-Umami Black features an exquisite Urushi lacquer finish, applied through a specialized thermosetting process, bonding to the aluminum body via vapor deposition. | 
