Utopia Be 13 WS
5″ Multimagnet Subwoofer
Compact 13cm (5″) Utopia Be 13 WS subwoofer developed for mounting at the front of the vehicle. 22mm (0.9″) high linearity voice coil, Neodynium magnet. High power handling, significant energy contribution in a well-limited inner volume environment in order to achieve exceptional bass reproduction.
W COMPOSITE Utopia Be 13 WS SANDWICH CONE
The “W” composite sandwich cone permits total optimization of the frequency response curve. Thanks to the total control of three key parameters: lightness, rigidity, and damping. At Focal, the letter “W” means Glass/ Glass. Usually has two sheets of woven glass tissue that are “sandwiched” onto the structural foam core. The glass tissue benefits from the incredibly fine weaving of very long fibers. This choice offers a mass and a size clearly inferior to those in Aramid fibers or other Kevlar® fabrics. Generating coloration in the midrange. It’s also important to note that the molecular bond between the resin and the glass is greater with Aramid fibers. The cone structure is more homogeneous and its behavior in flex is much more superior.
These unique characteristics of lightness and rigidity provide control of the signal transmission speed inside the material. Adjusting the thickness of the structural foam allows very precise control of the “W” cone’s damping. The variation of the number of glass fiber sheets and the thickness of the central foam can easily optimize the cone’s behavior according to the desired frequency range. When listening, the sound of the “W” cone is entirely transparent, has an excellent phase response, and has a very low distortion rate (rigidity 20 times higher than Kevlar® or Aramid fiber).