A shielded magnet structure allows the HiVi M3N 3" full-range speaker to be incorporated easily into audio/video and multimedia applications. The driver may be used in a small closed box as a midrange unit in a three-way system and the good extension (97 Hz) in a vented enclosure allows for use in a 2-way two-driver or MTM configured system. The M3N also features a magnesium/aluminum alloy cone, stamped frame, and hi-temp voice coil and bobbin.