Fluance ES1 Higher Fidelity Two-way Floorstanding Pillar Speakers Tweeter: 1" Titanium Balanced Silk Dome Ferrofluid Cooled Midrange/Woofer: Four 5" Woven Glass Fibre Composite Drivers with Butyl Rubber Surrounds Power Handling: 40 - 160 Watts Crossover Frequency: 3500 Hz