Autotek Street Machine SM4-800 800 Maxx Watt Power A/B Class Four-Channel Amplifier (Silver) 4 x 100 W at 4 Ohms, 4 x 200 W at 2 Ohms, 2 x 400 W at 4 Ohms Maxx Power Twin-Coil Isolation Design (TCID) Fully adjustable crossovers include 24dB low-pass and 24dB subsonic filter Bass Thrust with variable bass equalization RCA line outputs include amplifier daisy-chaining and 4-0 gauge power connectors