KlaraForm Vented Kapton Former technology reduces distortion by reducing heat and resistance UNICAP Technology provides a stiff piston for pronounced SPL Phoeniroll Surround Technology promotes linear motion Torriform Voice Coil Technology: Effectively dissipates heat and minimizes distortion Nickel Plated 12 Gauge Speaker Terminal Optimized for Sealed or Vented Enclosures Powder Coated Anti-Resonant Steel Basket Product Specifications: 25mm of Peak to Peak Excursion Dual 4-Ohms Voice Coil High Excursion CAE/CAD Motor Design KlaraForm Vented Kapton Former technology reduces distortion by reducing heat and resistance UNICAP Technology provides a stiff piston for pronounced SPL Phoeniroll Surround Technology promotes linear motion Torriform Voice Coil Technology: Effectively dissipates heat and minimizes distortion Nickel Plated 12 Gauge Speaker Terminal Optimized for Sealed or Vented Enclosures Powder Coated Anti-Resonant Steel Basket