BL-15/500 15” MID BASS - 15 Inches 900W continuous program power capacity 76.2 mm (3 in) copper voice coil 40-3500 Hz response 98 dB sensitivity

BL-18/1500 18” LF Drivers -18 Inches 3000W continuous program power capacity 99.5 mm (4 in) copper voice coil 35-3500 Hz response 96 dB sensitivity