The all-new Octane-R Series speakers incorporate many of the same tuner-inspired cosmetic attributes as the amplifiers, such as an aluminum plated cone, injection molded dustcaps that match the amplifier badge, and an illuminated logo that glows blue when the system is powered on! The Octane-R High Excursion Subwoofers are available in both single and dual voice coil versions to make connection to any system a piece of cake.