Gravity 2000.1D Class D Car Audio Amplifier – 1000 Watts True RMS @ 1 Ohm Max Power at 2000W, 1/2/4 Ohm Stable, Digital, Monoblock, Mosfet Power Supply, Great for Subwoofers
SAR 652
Gravity GBR250.4D True 360-Watt RMS Micro Ultra Compact Digital 4-Channel Full Range Amplifier with RCA Stereo Input - Perfect for Motorcycle, RV, ATV, Car, Boat, Marine
SAR 522
Gravity 4000.1D Class D Car Audio Amplifier – 1800 Watts True RMS @ 1 Ohm Max Power at 4000W, 1/2/4 Ohm Stable, Digital, Monoblock, Mosfet Power Supply, Great for Subwoofers
SAR 867