When multiple drivers are attached in a system, a "filter network", called a crossover, is familiar with to separate the incoming signal into distant frequency bands appropriate for each driver. A loudspeaker entity with n free frequency bands is described as "n-way speakers": a 2-way orderliness will have woofer and tweeter speakers; a 3-way organization is either a combination of woofer, mid-range and tweeter or subwoofer, woofer and tweeter.
Driver design, and the combination of single or also drivers into an enclosure Visit Site to make a speaker system, is both an know-how and science. Adjusting a layout to improve performance is done using magnetic, acoustic, mechanical, electrical, and material technique theory, high precision measurements, and the observations of experienced listeners.