Great for line arrays and horn loading Neodymium magnet assembly Ventilated voice coil gap for reduced power compression Inductance-reducing copper cap on pole piece extends HF response 2" copper voice coil on polyimide former B&C's 8NDL51 8" speaker offers the efficiency and smooth response of a midrange driver and combines it with the Xmax capabilities of a woofer, making it perfect for a variety of compact pro PA loudspeaker applications.