Channels:5 Channels POWER RMS 4 OHM:4 x 90 + 1 X 240 POWER RMS 2 OHM:4 x 110 + 1 X 400 POWER RMS 1 OHM:1 X 600 POWER RMS 4 OHM BRIDGED:2 X 220 THD:<0.3% S/N Ratio A-Weighted:>90dB GAIN RANGE:0.2-6V Crossover Range:50Hz – 300Hz Frequency Range:10Hz – 20KHz SUBSONIC:N/A