Product Introduction: Neodymium 18 Inch Powerful Subwoofer Speaker Model No.: 18DN100 This high power 18 " pro audio loudspeaker uses good quality 97×11mm neodymium magnet & 4 inch voice coil. The rated power is around 1500 watts, and the maximum power can reach 3000 watts. Professional processing and strict QC control ensure its superior quality. It's a good choice for stage performance, home theatre and karaoke. This 18 inch neodymium low frequency transducer provides excellent sound without distortion. General Specifications: Magnet Size: 97×11H Sensitivity: 95 dB