Pyle PLBA330FRD BLADE 4400-Watt 3-Channel Compact Class-D Full Range Hybrid Amplifier (Discontinued by Manufacturer) 2 x 300 Watts + 1 x 800 Watts RMS @ 4 Ohms - New Compact Design Based on Class-D Technology - Variable Bass Boost Frequency : 40Hz-100Hz dB(Variable) - Nickel Plated Low Level RCA Input - S/N Ratio &gt; 95 dB 2 x 600 Watts + 1 x 1600 Watts MAX @ 4 Ohms - Double Sided SMT Circuit Board - Variable Bass Boost:0-18dB - Power Protection LED Indicators - Fuse : 25A x 2 2 x 450 Watts + 1 x 1200 Watts RMS @ 2 Ohms - 2 Ohms Stereo Stable - Phase Adjustable : 0 - Advanced Protection Circuitry - Dimension : 8.78''(L) x 7.40''(W) x 1.99''(H) 2 x 1200 Watts + 1 x 2000 Watts MAX @ 2 Ohms - LPF Variable Crossover : 30Hz-200Hz 24dB/Oct - 180 - Soft Turn On/Off High Glossy Black Brushed accents Heat Sink - HPF Variable Crossover : 50Hz-180Hz 12dB/Oct - Dash Mount Remote Subwoofer Control - Frequency Response : 10 - 40K Hz