I'm confused. Isn't a speaker system with two crossovers kind of definitionally a 3-way speaker?This was the best full-range speaker I ever heard :
Von Schweikert UniField 3
Albert Von Schweikert called it a "dynamic-driver augmented one-way system utilizing a full-range driver for ‘image lock’ supported by a subwoofer and ribbon super tweeter." The majority of the frequency range was covered by the 5" Fostex full-range driver. Crossover frequencies were 100Hz and 8kHz. It was an amazing speaker in a smallish room.
Martin