Low-frequency woofers of considerable diameter are placed on the sides, facing each other, and are switched on in phase. All three drivers are coated aluminum, and the tweeter is not domed, but also conical. The crossover section frequencies are set to 150 and 2800 Hz, and the crossover in the upper band is of the 3rd order. The midrange and treble ranges are serviced by HHCT II (Hyper-Holographic Cone Tweeter) and HCM cone speakers.