OSD Audio LP-006-00012TSM8 Dual Source 8-Zone Heavy Duty Speaker Selector 300W with Amplifier Protection - Pair of satellite speakers excellent for fronts or rears Equipped with two 3.5-inch high definition midrange drivers and one 1-inch pure aluminum dome tweeter Frequency response: 60Hz - 30kHz Equipped with two 3.5-inch pressure-driven planar technology bass radiators Magnetically shielded for safe placement near other equipment with no risk of video distortion