JBL S310 II 3-Way Floor-Standing Speaker (Black Maple) (Discontinued by Manufacturer) 3-way, 10", floor-standing loudspeaker with MDF enclosure Maximum recommended amplifier power: 200 Watts High-frequency driver: 1" pure-titanium dome with EOS waveguide Midrange driver: 4" PolyPlas cone; PolyPlas cone woofer features traditional JBL engineering Low-frequency driver: 10" PolyPlas cone; shielded components allow placement near video monitors