Definitive Technology Mythos 4 Tower Speaker (Single, Black) (Discontinued by Manufacturer) Single floorstanding tower loudspeaker Equipped with two 4.5-inch high definition midrange drivers and one 1-inch pure aluminum dome tweeter Frequency response: 35Hz - 30kHz Equipped with two 4.5-inch high definition bass drivers and two 4.5-inch pressure-driven planar technology bass radiators Magnetically shielded for safe placement near other equipment with no risk of video distortion.