SPECIFICATIONS Frequency range 45Hz to 20KHz Neutrik Speakon input Normal resistance 8 ohm Rated Power Capacity 300w Product/Shipping dimensions(WxDxH) 470x460x650/(*x*x*)mm N.W/G.W 28.50 / **kg SPEAKER COMPLEMENT High-performance woofer:Diameter 15" Sensitivity 97dB(1W/1m) Impedance 2.5 ohm Power(RMS) 250W Tweeter compression driver:Diameter 1.75"(25mm) Impedance 8 ohm Power(RMS) 50W/2KHz @12dB/oct Horn(dispersion angle) H60o x w40o