"Features * JBL 12 in low frequency driver with a 64 mm (2.5 in) diameter edgewound ribbon voice coil which provides more cross-sectional wire area in the voice coil gap than round wire designs, for greater efficiency and power handling. * JBL 2414H-C 25 mm (1 in) polymer diaphragm compression driver improves high frequency performance as well as system reliability. * The advanced network topology crossover design shapes frequency response and delivers ""coherent summation"" in the crossover region. * High-voltage capacitors and inductors with massive cores and heavy gauge wire enable the crossover network to handle high power without saturating. * Progressive Transition" high frequency waveguide provides superior coverage control, reduced distortion, and smoother frequency response. * The rugged, acoustically superior enclosure is constructed from 19 mm (.75 in) MDF (Medium Density Fiberboard) using advanced adhesives and mechanical fastener technology for extreme durability and improved low-frequency performance. * SonicGuard" protects the high frequency driver from excess power without interrupting the performance. * Non-resonant, all-steel handles are used. * Attractive 18-gauge hexagon perforated, steel grille protects components from damage. * Dual-angle pole-mount socket allows the speaker to tilt 10°for more uniform audience coverage."