It’s all about the enclosure
Hugely complex but with benefits that are immediately audible, an Interport-Coupled Cavity cabinet renders clearly superior performance in the reproduction of low frequencies. The engineering challenges and complicated manufacturing requirements of such a design makes it rare in the world of affordable speakers, but Jones’ pursuit of a new value-to-performance benchmark demanded this no-compromise solution.
Each Adante cabinet is actually multiple enclosures in one. The concentric midrange/tweeter is isolated in its own space within the cabinet, and the woofer complement, comprising an active and passive driver, occupies a divided chamber vented internally with dual ports. In the case of the Center and Floorstanding models, two and three double chambers respectively isolate each woofer pair from the other. Instrumental to the design benefits of an Interport-Coupled Cavity is that the entire enclosure is not externally ported at all, because such external ports will produce noise and other distortion artifacts if the speaker is overdriven.
On the other hand, a coupled-cavity design means that the active driver remains invisible, mounted internally in its own rear box that vents bass energy through dual bass ports to a front box which encloses a larger passive radiator. The piston action of this front-firing passive driver delivers low-frequency information that is tight, tuneful, extended and with greater output capability than a traditional externally-ported enclosure. This Interport-Coupled Cavity cabinet enhances the linearity of the active bass transducer by reducing driver excursions.
Optimized cabinet volumes allow for a crossover network tuned to take advantage of such a design. An internally vented box, with another box in front housing a passive radiator—means that acoustically, the front box becomes a second-order acoustic low pass filter, eliminating the requirement for two orders of electrical network, further reducing driver distortion.
With so much buried inside, what does all this complicated engineering mean for your music? It means clean, distortion-free, natural, accurate, authoritative bass that defies the norm and challenges far more costly competitors.