Class D full range Amp 1ch x 3000w @ 1 ohm, 13.8v THD <1% Input Sensitivity: 200mv – 5v LPF: 15 – 80hz HPF 80 – 20khz Signal to noise ratio 89db Frequency responce: 15hz – 20khz Input impedance: 22kohms Efficiency output stage >90% Voltage supply: 9 – 16vdc Remote Bass Control Dimension (wxhxd) : 185 x 225 x 66.5mm