Pioneer SP-C21 130 Watt RMS 2-Way Speaker (Discontinued by Manufacturer) Crossover Type-2-way;Maximum Frequency Response-20 kHz; Physical Characteristics-Height-7.9; RMS Output Power-130 W;Impedance-6 Ohm; Physical Characteristics-Width-19.9; Driver Type-1 Dome Tweeter, 5.25 Woofer; Crossover Frequency-2.50 kHz to; Physical Characteristics-Depth-8.7; Minimum Frequency Response-55 Hz;Sensitivity-87 dB;