With a newly designed bass reflex tube cabinet and woofer, this 1600 Wattage Champion Series Tube is now even more powerful and robust. The Champion Tube SWF is designed with numerous new technologies to enhance durability. First of these features is the buttress ring, its primary function is to help the device retain its stability and linearity during periods of heavy usage/high output. This device also includes an aluminium bobbin that enhances high and capable power handling, it also greatly improves heat absorption. The most impressive of these features is this products voice coil. The voice coil is fashioned from high-grade materials and promises zero deformation and drop-down, unlike other brands that suffer wire frying and dropping of the coil with time.