Frequency Response ±1dB from 10Hz to 30kHz .Signal to Noise Ratio >100dB .@10W Output Power/T.H.D 10W(6.33V) 4Ω T.H.D% 0.05 .High and Low Pass Crossovers 12dB/oct .Crossover Range 50Hz to 350Hz .Low Level input Range 200 millivolts to 6 volts .Lowest recommend Load 2 ohms stereo or 4 ohms Bridged .Typical Efficiency(AMP) 90% .RMS Power Output 155W×4 @ 4 ohms . 260W×4 @ 2 ohms Stereo . 520W×2 @ 4ohms Bridged .Dimensions(LxWxH)mm 300x180x55