XM20 is a small and powerful amplifier with a peak power output of 2 x 100 WattsIn 4 ohm mono bridge-connection, it puts out all of 170 WattsBuilt-in low-pass filter for subwoofers, variable between 50 and 500 HzThe high-pass filter is also variable between 50 and 500 HzBuilt-in protection circuits shut down the amplifier in the event of overloadsHigh level input with AUTO-start function makes it easier to connect to factory installed head unitsBass EQ function in two steps, +6dB or +12 dBSpecifications:Number of channels: 2Amplifier class: ABPeak power: 2 x 100 WattMono bridge mode 4 ohm: 170 WattOutput power in 2 ohm: 2 x 80 WattOutput power in 4 ohm: 2 x 56 Watt vid 1% THD, 2 x 50 Watt vid 0.05% THDDamping factor: > 80S/N ratio, A-weighted: > 90 dBFrequency range: 20 Hz - 30 kHzInput sensitivity: 0.25 - 5 VoltInput impedance: 22 kohmInput impedance, high level: 220 ohmHigh pass filter: 50 - 500 HzLow pass filter: 50 - 500 HzGrand bass filter: Bass EQ +6dB / +12 dB @ 50 HzLow level output: NoHigh level input with auto start: YesPower consumption (idle): 0.4 APower consumption (max): 25 ARec. power cable: 5 AWGFuses: 1 x 25 ADimension (W x D x H): 7.44" x 8.26" x 1.81"