Some manufacturers have provided me with discounts or free products. This in no way influences their representation on these pages. Email me if you have any questions. Full-range single driver speakers attempt to cover the entire audible frequency spectrum using only one driver unit. This removes the need for an electronic crossover network, well known for being hard to design without introducing colorations to the sound.
Some people consider the crossover network one of the most evil things in audio.
In practice, how well a single driver speaker delivers depends both on the driver and the speaker cabinet design. Other manufacturers that build full range drivers include Mitsubishi, Jordan, Reps, Fertin, and many others. Dick Olsher has a nice write up called Single Driver Ecstasy that explains much about the magic of full range and wide range drivers, especially those that cover the mid range spectrum. For a more complete answer on single driver full-range speakers, see the Theory section.