Focal P25FSE - 10" 25cm 560 Watts 280 RMS 4 Ohm Flax Cone Slim Shallow SubwooferFocal P25FSE 10" 25cm 560 Watts 4 Ohm Flax Cone Slim Shallow Car Subwoofer FLAX TO THE MAX If you've heard Focal speakers, then you know that their reputation for quality is well deserved. Focal's designers never hesitate to think outside the box when it comes to speaker innovation. To create their Flax Evo Series speakers and subs, for example, they spent five years developing a super lightweight, extra rigid cone material made from a layer of flax