At NAMM 2008, Celestion announced the introduction of CDX14-3050, a 1.4-inch exit, neodymium magnet, compression driver. This product features a “next generation” design phase plug, developed at Celestion’s UK headquarters, using technology that results in a more accurate sounding compression driver.
Celestion’s new CDX14-3050 compression driver boasts next generation technology that results in a more accurate sounding driver, exhibiting much lower distortion than many typical large format devices already on the market.
A brand-new and patent-applied-for method, developed by Head of Group Research Mark Dodd and his team, has been used to calculate key dimensions within the compression driver’s phase plug.
“It’s possibly the most significant development in annular phase plug design in 50 years” commented Dodd, who presented his findings at the 123rd AES (Acoustical Engineering Society) Conference, in October 2007.
“While looking further into modal decomposition as applied to a curved diaphragm, we were able to develop a new set of criteria that re-defined the calculation of specific phase plug dimesions. The result is greater modal suppression and reduced air non-linearity – in other words, less distortion.”
The compression driver also features a deep-drawn titanium diaphragm, for increased stiffness. This results in a higher threshold frequency that avoiding the dome break-up (distortion)—within the critical mid-range listening band of 2-10kHz—that is associated with lower profile diaphragms.
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