Electro Voice DL15BFH PA Speaker Item #: ELE DL15BFH 

The ideal 15 inch for high-power bass boxes or 2-way systems. EV's RMD technology provides smooth vocal performance with low-frequency impact. Specs include a high power rating of 350 watts, 45 - 2,000 Hz freq. response, 8 ohms, 12 lbs.

In the late 1960s and early 1970s, two Australians - A.N. Thiele and R.H. Small - developed the parameters by which the performance of loudspeaker components could be accurately predicted before manufacture. With the Thiele-Small Parameters, engineers could design loudspeakers on paper instead of by expensive trial and error. In 1972, EV became the first U.S. manufacturer to design and produce components according to these parameters. EV’s cutting-edge components today are part of that legacy of technological excellence.

Woofers
EV component woofers are high-efficiency designs highly refined from years of development and field experience. They employ extended-length voice coils for high-impact reproduction of dynamic low-frequency program. All woofers feature proprietary heat-transfer systems for unmatched power capacity and reliability. Kevlar-fiber-composite cones are used to provide structural strength to resist collapse during explosive dynamic peaks and to provide internal mechanical damping to minimize resonances that can change the character of the sound at high levels. The DL15BFH woofer is made of a cast aluminium frame with push terminals, and features Ring-Mode Decoupling (RMD).