The Power T2S2-16 subwoofer features 16-inches of effective radiating cone area and a single 2-ohm voice coil for ease of wiring. Three layer glass fiber/Aramid honeycomb/Glass fiber cone. Aluminum dustcap. Injection molded foam surround with VASTã¢. Proprietary surround mechanical clamping ring. Dual Nomex progressive spiders with integrated lead wires. Aluminum diecast frame with integrated heat sink fins. Custom push spring insulated 8 AWG terminals. Single layer edge wound aluminum 4″ voice coil. Detachable die cast aluminum trim ring. Vented pole piece. Triple stack segmented ferrite motor structure. Integrated aluminum heat sinking shorting ring (IDHS).