The Black Control 31 Speaker from JBL utilizes high-power components, computer optimized horn, and a complex network to achieve a smooth, powerful high-fidelity performance, extended bandwidth, and a well-controlled and defined coverage from a compact loudspeaker. The Control 31 features a 10" low-frequency driver with a pure butyl rubber surround, 2" high-temperature fiberglass voice coil for high sensitivity, high-output capability, and stability. The high-output, high-frequency compression driver has a unique patented design, high-temperature polymer diaphragm, and fluid-cooling for high-output levels with low distortion.

This passive speaker has a 250W capability plus a 150W transformer for 70V or 100V distributed lines with 8 Ohms thru bypass. With a WeatherMax multi-layer grille, it can be installed both indoors and outdoors, and a InvisiBall mounting system allows for quick and easy installation.

High-output 2414H-C compression driver with 1" exit

Woven-fiberglass cone for a high degree of weather capability

Pure butyl rubber surround for clean sound quality

Optimized cone geometry provides for smooth frequency response and good off-axis performance

Linear suspension spider provides low distortion

FEA-optimized motor construction produces minimum harmonic distortion

Aluminum coupler ring outside the pole post reduces distortion and increases sensitivity

110 x 110° symmetrical coverage

WeatherMax multi-layer foam and tight-weave screening grille

InvisiBall allows horizontal rotation of up to 41° off-axis and vertical rotation of up to 36° (horn end inward) or 23° (woofer end inward)

Sealed input-panel cover and screw-down input terminals included for secure connection

Painted with a UV-resistant finish to resist yellowing due to UV exposure