Definitive Technology Mythos 2 On-Wall Speaker (Single, Black) (Discontinued by Manufacturer) Single on-wall loudspeaker for placement anywhere Equipped with two 4.5-inch high definition midrange drivers and one 1-inch pure aluminum dome tweeter Frequency response: 45Hz - 30kHz Equipped with two 4.5-inch pressure-driven planar technology bass radiators Magnetically shielded for safe placement near other equipment with no risk of video distortion.