The EVI-28 full-range loudspeaker is a 250-watt, two-way, high-efficiency system featuring a new small-format Vari Intense horn and dual 210 mm (8-inch) direct radiators in a compact vented enclosure. The EVI-28 combines patented-Vari Intense technolog y with amplitude-, frequency- and delay-shading techniques in a fully passive system to a package that is an industry first in performance, size and cost-effectiveness. The EVI-28 is intended to be used as a stand-alone full-range system, but may also be used as the midbass/high-frequency component in most multi-way loudspeaker systems. The primary applications for the EVI-28 are in smaller rooms, rooms with lower ceilings than applicable for the EVI-12 and EVI-15, and as a complementary system for upper balconies and under-balcony areas. The system is optimized for regular throws on sloped floorplans of approximately 10 to 15 degrees or long throws on a flat floorplan relative to the mounting height. The high-frequency section of the EVI-28 util izes a new small-format Vari Intense horn driven by the DH2010A one-inch throat, wide-bandwidth, titanium-diaphragm compression driver. This driver uses a unique, convex-drive Time PathTM phasing plug structure (U.S. Patent #4,525,604). The voice coil is coupled to the diaphragm with EV's exclusive Resonant DriveTM technology. This increases and smooths the high-frequency response and reduces the amount of internal equalization for flat frequency response past 25,000 Hz. EV's self-resetting PROTM ci rcuit is built into the crossover network to guard the compression driver from damage. If input power to the driver exceeds the nominal rating, the pro circuit is activated, reducing the power delivered to the driver by 6 dB. The system will remain in this mode of operation until input power is reduced to a safe level. The optimally vented bass section of the EVI-28 is designed using Thiele-Small parameters for efficient performance to below 60 Hz. The dual proprietary 210-mm (8-inch) high power, lo ng excursion low frequency drivers deliver outstanding performance. The woofers feature a low-mass extended 51-mm (2-inch) diameter voice coil combined with a large magnet structure, a stiff, high-internal-damping cone and high-temperature materials fo r years of reliable performance.
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