Sony XM-S400D, Component 4 Channel Class D Amplifier - 400 Watts

Class-D amplification technology for high power 100 W x 4 maximum power output Low and high pass filters for accurate sound Speaker level inputs with power sensing for simple installation Overload protection circuit and speaker level input | 100 x 4 Number of Channels 4 Class D Peak Power Rating (Watts) RMS Power Rating (Watts x Channels) - 4 Ohms   45 x 4 RMS Power Rating (Watts x Channels) - 2 Ohms N/A RMS Power Rating (Watts x Channels) - 1 Ohm N/A RMS Power Rating - Bridged   N/A Minimum Impedance Unbridged (Ohms) 4 Minimum Impedance Bridged (Ohms) N/A THD at Rated RMS Power 1% Bulit-in Crossover - Low Pass Yes Built-in Crossover - High Pass Yes High Pass Crossover Frequency (Hz) 120hz Low Pass Crossover Frequency (Hz) 120hz Signal-to-Noise Ratio 83dB Bass Boost N/A Bass Remote Included No Fuse Rating 15A CEA-2006 Compliant Yes Maximum Power Wire Gauge Size Warranty 1 Year