The speakers also feature a high-quality crossover network, minimized driver excursions through displacement control circuitry and bass / midrange driver woofers that use TCC triple curve cone technology.

The Reference 5.2 and 7.2 are floor speakers that use a 3-way bass reflex system and pressure-laminated, curved side panels in their two-chamber monocoque enclosure.  The 5.2 has two 7.5-inch woofers, while the 7.2 has two 7-inch woofers.  They both incorporate a 7-inch midrange and 1-inch tweeter.  The Reference 9.2 is the smallest speaker in the Reference Line.  It is a compact monitor speaker that has a 2-way bass reflex system, a 7-inch woofer and 1-inch tweeter.