This combination of advanced design technology results in a bass driver that is remarkably free from dynamic restriction due to heat buildup. 4 Mid-Frequency Transducer The 4344MkII also features a 10" (254mm) mid-frequency transducer. The voice coil is 3" (76mm) in diameter and wound on edge from flat copper ribbon wire on a thermoset compositeTM form. Its very high-power capability and freedom from breakup make it an ideal midrange in a system that is designed to play at high levels with absolutely no signs of distress. It makes the transition from the woofer at 340Hz, providing excellent response throughout the important vocal range. High-Frequency Transducer Throughout the history of high-frequency transducer design, the goal of extended frequency response has been at odds with the need for high power handling. The 4344MkII utilizes a 2" compression driver with an Aquaplas-coated titanium dome. JBL has long chosen titanium as the material for its highest-quality high-frequency transducers and the 4344MkII is no exception. Titanium possesses the essential requirements for a high-frequency transducer. First, titanium is extremely light, yet rigid. The goal is to maintain a piston-like action as high in frequency as possible. Should the material flex easily, the diaphragm will break up into random vibrations. Second, titanium is virtually immune to fatigue, unaffected by the cumulative effect of millions of flexures over long operating periods. These factors coupled with the higher power handling that titanium affords, allow us to produce an extremely smooth highfrequency transducer with extended frequency response that can handle all the demands of today's digital programs. The Horn/Lens assembly ensures controlled distribution of the high frequencies, resulting in a wide soundstage with pinpoint imaging...