Definitive Technology Mythos Gem XL Speaker - (Single) Black Single compact satellite speakers excellent for front or rear Equipped with two 4.5-in long-throw cast-basket bass/midrange drivers with butyl rubber surrounds Frequency response: 50Hz - 30kHz. Nominal Impedance: 8 ohm Equipped with one 1-inch Ferro fluid-dampened pure aluminum dome tweeter Magnetically shielded for safe placement near other equipment with no risk of distortion