Eminence American Standard KAPPA-15A 15-Inch Professional Speaker

Driver Diameter: 15 inches (381 mm) nominal basket footprint. Impedance: 8 Ohms. Power Handling: 450 Watts RMS (Continuous) / 900 Watts Music Program. Voice Coil: 3-inch (76.2 mm) diameter copper voice coil wound on a polyimide former. Magnet Weight: 80 oz. heavy-duty ceramic ferrite magnet block. Frequency Range: Highly efficient mid-bass band optimized from 52 Hz to 2.3 kHz. Sensitivity: Rated at a loud 100.5 dB SPL (1W/1m) for maximal acoustic projection.