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?
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Infinity 2000A's with RTR electrostatic tweeters! I have a pair bought from the original owner - a California college professor. Nice!
@roberjerman, oh how I lusted for a pair of the 2000A's in 1971! Their only competition was the ESS Transtatic, which also used the same, great RTR ESL tweeters---three of them. I have a pair I found in 1982, though they haven't been hooked up in years. While the 2000A had a normal looking enclosure hiding it's unique guts, the Transtatic was a 42" tall structure, with overhanging top and bottom blocks of walnut-veneered MDF.
Wolf is dead on about the Heresy really singing with quality electronics...I’m running a CJ Classic 2SE pre and a pair of Quicksilver Mid Monos and my Heresy III sound awesome with 40 watts of EL34 goodness.  
I'd like to see Klipsch tuning the Heresy box with a port (likely requiring a different bass driver), and putting the mid and treble horns on top of the box as it would provide sort of a steam punk vibe…of course, then it wouldn't be a Heresy anymore although perhaps more heretical. That said, and having said that, my Heresy IIIs are great the way they are. Oddiofyl is 100% correct, has superior taste, and is likely kind to animals. However, why he's a mad power freak is mysterious…40 watts? INSANE….