Perhaps perceived as too old fashioned for some, I've been pleasantly surprised at how astonishingly good my recently acquired Klpisch Heresy IIIs sound with a pair of subs. Updated here and there, but they get the "Been Around a While" award for model longevity. They require well sorted amps and cables to get to a "high end" level, but man…a great speaker.
most advanced speaker in a rectangular wooden box?
As you move up the scale of ingenuity and price, speakers take on different, sometimes fantastic, shapes and are made out of different, sometimes exotic, materials. So what would you nominate as the most advanced design that still houses its drivers in an essentially rectangular box made of some kind of wood product?