My favorite full ranger is the Fostex. Either 108Sigma or the 168 Sigma. They make sweet music but like most full rangers suffer on the bottom. Good thing is they are cheap (compared to some of the Lowthers) and there are plenty of good designs available in the public domain.
Is there a monitor speakers with just one driver?
...want to search market for specific brands on full range one-driver speaker. I want to use it solely for midrange in addition to the 2-way speaker with active crossover.