Ebony The Reference Premiere RP-440 center channel speaker brings clarity and precision to your home theater system with a sleek brushed baffle and four Cerametallic™ copper woofers. 1" Linear Drive Suspension Titanium Tweeter Quad 4" Spun Copper Cerametallic Cone Woofers 90×90 Tractrix Hybrid Horn Loudspeaker All-New Tractrix Bore MDF Cabinet with Polished Polymer Veneer Baffle Finish . PZA More features