TH1025 includes one 75mm voice coil compression driver and two 15-inch drivers 75mm voice coil.The compression driver uses titanium diaphragm edged with Mylar, and is coupled to a 90-degreehorizontal, 60-degree vertical horn, which can be turned, to make the sound design more flexible.Above 350Hz, where less power is required, the crossover feeds full signal to one of the two 15-inchdrivers and rolls off the other. This technique elimites interference between the drivers that would occurat shorter wavelengths. The cabinet has 10 rigging points points for an easy installation.