The KEF Kube 8b Subwoofer in Black is a high-performance compact audio device that will enhance the sound quality of your music & movies. With an eight-inch bass driver & a 300W Class-D amplifier this subwoofer delivers deep & powerful bass that will complement your speakers. Its compact & stylish design makes it a great addition to any home entertainment system while its advanced features like i BX technology & EQ settings make it easy to set up & use. Upgrade your home entertainment with the KEF Kube 8b Subwoofer.