Brax MATRIX ML10 subwoofer 10" (250 mm).

Precision in perfection! For years, our BRAX subwoofer has been the benchmark for precision and unconditionally controlled bass reproduction.
It was even more demanding to create a BRAX subwoofer that uncompromisingly reproduces deep bass even in smallest possible enclosures.
Each component of this exceptional driver is not only made for dynamics and perfect tonality, but is also designed to convert even huge loads of amplifier power into sound pressure without compression. MicroSphere – a material for two opposing requirements The demand for maximum cone stiffness in combination with highest innner damping seems like the attempt to square the circle – actually the unique "MicroSphere" coating,
where ceramic micro-hollow spheres with a diameter of only 75 microns are embedded in a polymer layer and applied to the diaphragm makes the impossible possible.
It warrants for maximum acoustic precision and unrivaled sound quality...