SELENIUM D4400TI Titanium Horn Driver Specifications: Power handling: 125 watts RMS/175 watts max (conservative, with recommended 1,200Hz, 12 dB/octave crossover) VCdia: 4" Impedance: 8 ohms Frequency response: 600-20,000 Hz (no crossover) SPL: 112 dB 1W/1M Magnet weight: 94 oz. Dimensions: 9" dia. x 6-1/2" D. Specifications: Power handling: 125 watts RMS/175 watts max (conservative, with recommended 1,200Hz, 12 dB/octave crossover) VCdia: 4" Impedance: 8 ohms Frequency response: 600-20,000 Hz (no crossover) SPL: 112 dB 1W/1M Magnet weight: 94 oz. Dimensions: 9" dia. x 6-1/2" D.