Mirage OMD15 3-Way OM Design Series Floorstanding Loudspeaker (Black) for $379.88 shipped. Here is a screenshot for your reference.  It features two 1" Pure Titanium Hybrid (PTH) dome tweeters, two 2" chambered titanium cone mid-ranges and two 5.5" Titanium Deposit Polypropylene Cone woofer with down-firing port, magnetic shield, and 33Hz to 20kHz frequency response.