Mono amplifier with 300W x 1 @ 1-Ohm RMS power rating (150 Watts x 1 @ 2-Ohms, 75 Watts x 1 @ 4-Ohms) * Designed for a subwoofer system that requires little space--just 1.53 x 4.25 x 6.75 inches * High- and low-level inputs with variable 4-6 volt hi level DC offset voltage input turn-on control * 35Hz - 250Hz low-pass crossover with 12dB/octave Butterworth slope * One-year limited warranty * Features Patend Pending Boosted Rail Technology For High Power With low Current Draw * On Board PEQ Punch Equalization With 18db Of Boost At 35 Hz And Or 12db Of Boost At 12K Hz * DTM Dynamic Thermal Management Evenly Distributes Heat Across Entire Amplifier For Reliability * Power Ratings 75 X 1 At 4 Ohms 150 X 1 At 2 Ohms 300 X 1 At 1 Ohm * Accepts RCA Or Speaker level Input and Auto Senses @ 7.5v For Remote Turn On