Powerful Composite Cone design - The new IMPP composite cones are designed specifically to prevent cone failures at high sound pressure levels. Composite Cones have a well balanced rigidity and moves in unison without any strong or weak points.
Dual-layer Surround - The first of its kind technology, Dual-Layer Elastic Polymer Surround dramatically improves durability and lightness, for superior response, especially for louder volume.
Dual Voice Coil - For loudness & durability as compared to a single voice coil.
Fully Enclosed Basket - To suppress undesirable sound-distorting recoil to the cone, realize clear and punchy bass sound.
Copper voice coil - Copper offers less resistance & is crucial in clear sound reproduction.