The 1400 Array utilizes the same 435AL aluminum midrange compression driver found in JBL’s ultrahigh-end K2 S5800 Series loudspeaker, paired with an ultrahigh-frequency 045Ti pure-titanium compression driver. JBL Project Array floorstanding loudspeakers employ advanced Aquaplas-treated high-frequency transducers and titanium-diaphragm ultrahigh-frequency drivers in an extremely dense and rigid freestanding horn. The unconventional look of the horn assembly produces an equally unconventional sound: brilliantly clean highs – into the ethereal realm of 40kHz – delivered directly to a listener's ears. Coupled with a fast mid- to high-frequency compression driver in the time–honored JBL Professional tradition, Project Array brings a new level of dimensional accuracy to the tonal and dynamic realism JBL is justly famous for.