Sound Storm Laboratories EVO3000.1 Evolution Series Class D Monoblock Car Audio Amplifier - 3000 High Output, 1 Ohm Stable, Low Level Inputs, Low Pass Crossover, MOSFET, Hook Up to Subwoofer for Bass

Sound Storm Laboratories PB8 Car Subwoofer and Amp Package – Built-in Amplifier, 8 Inch Subwoofer with Passive Radiator, Remote Subwoofer Control

Sound Storm Laboratories EV4.1600 Evolution Series 4 Channel Class A/B Car Audio Amplifier - 1600 High Output, 2-8 Ohms, High/Low Level Inputs, High/Low Pass Crossover, Hook Up to Subwoofer for Bass

Sound Storm Laboratories US8K 8 Inch Under Seat Powered Car Audio Subwoofer - 800 Watts Max, Low Profile, Built in Amplifier, for Truck, Boxes and Enclosures, Remote Subwoofer Control

Sound Storm Laboratories LOPRO10 10 Inch Powered Under Seat Car Audio Subwoofer - 1200 Watts Max, Built-in Amplifier, Low Profile, Remote Subwoofer Control, for Truck, Boxes and Enclosures