• Neodymium radial slug motors for extreme speaker control and sensitivity • Full copper pole-piece sleeve for low distortion and inductance • Durable cast aluminum frame A bumped backplate, vented pole piece, vented magnet assembly, Kapton® former, and treated-cloth surround allow for high power handling, while protecting this driver from extreme transient power peaks. Available now at SSA Store: http://store.soundsolutionsaudio.com/products/prv-audio-5mr450-ndy-5-inch-8-ohm-mid-bass.html http://store.soundsolutionsaudio.com/products/prv-audio-5mr450-ndy-4-5-inch-4-ohm-mid-bass.html http://store.soundsolutionsaudio.com/products/prv-audio-6mr500-ndy-4-6-inch-4-ohm-mid-bass.html http://store.soundsolutionsaudio.com/products/prv-audio-6mr500-ndy-6-inch-8-ohm-mid-bass.html http://store.soundsolutionsaudio.com/products/prv-audio-8mr600-ndy-8-inch-8-ohm-mid-bass.html