The Focal E30 KX is a 12in passive K2 Power subwoofer built with a Kevlar cone combining an ultra-light foam core, aramid fibres and glass layers to deliver rigidity, lightness and damping for precise and dynamic bass.

The design features a robust rubber suspension for high excursion, a redesigned aluminum frame, an oversized Dual Magnet and Radial VC voice coil cooling. Intended for car audio installations, it requires an external amplifier and is recommended for sealed or ported enclosures of 28 to 35 L.