The Control 25AV utilizes a deep cabinet, high-power components and complex network to achieve extremely smooth high-fidelity performance from compact 2-way loudspeakers. Premium performance capability and even coverage ensures excellent sound quality throughout the listening area. Magnetic shielding allows use of the speaker in close proximity to video monitors. The top-quality transformer, with reduced saturation, allows use on either 70-volt or 100-volt distributed speaker lines, with similar performance fidelity. In the bypass position, the high 8-ohm impedance allows use of more audio speakers on a loudspeaker line. The unique InvisiBall mounting method is simple to install, aims easily, and provides a high degree of theft deterrence. The cabinets accept a variety of paints to match any decor. Weather resistance is maximized by a stainless steel grille, which is paintable. Coating the woofer in polypropylene and terminating its circumference in JBL's WeatherEdge, a seamless, rubberized extension of the woofer surround, protects critical transducer elements. The polycarbonate tweeter diaphragm is reinforced with a thin film of titanium for added rigidity and endurance. Nickel/zinc rust-resistant terminals ensure a secure input connection. JBL's exclusive SonicGuard overload protection is virtually inaudible to the listener, ensuring reliability while providing full fidelity sound. You can't go wrong with speakers from the company whose name is synonymous with cinema sound and was voted number one in the recording industry in 1976 (the heyday of recording) by studio professionals. Today, JBL monitors are used by Grammy winners such as Frank Fillipetti (Ray Charles, Korn, Billy Joel, Kiss) and Nate Kunkel (B.B. King, Sting, Crystal Method, Maroon 5).