The layout of speakers themselves is crucial too. A classic two-way speaker employs one woofer, dedicated to producing low frequencies, and a tweeter that kicks out high-mid and high frequencies. The signals are separated by a crossover filter which splits the input into low and high bands. In monitor designs at the cheaper end of the spectrum, this crossover point sits at a crucial midrange area, so many higher-end monitors feature three-way (or even four-way) designs that employ more speaker drivers, aiming to keep those key midrange frequencies free of crossovers and so are clearer.