Model PROS215A Description Dual 15” 2-Way Professional Loudspeaker LF Driver 2 x 15" woofer / 380 mm Voice Coil with neodymium magnet HF Driver 1 x 4’’ voice coil, neodymium compression driver with annular polymer diaphragm (44XT)   Frequency Range 700 Hz Crossover Mode Bi-amp or Passive...