STUDIOSPARES SPEAKER CHASSIS This range of speakers are those used in our own products and have proven themselves to be 100% reliable. Existing Auditorium and Fortissimo clients have asked us to supply them for their own cabinets because of their outstanding performance. They are sold at a fraction of the cost of competitive products because we import them in the container load directly from the overseas factory. Note that we quote wattage as RMS power, (true power) or Continuous Pink Noise which for woofers is closer to reality. Other suppliers use the peak power which is around double the RMS figure.