Amazon.com: KICKER 48KXMA5004 500 Watt 4-Channel Marine Boat Amplifier Class D Amp KXMA500.4 : Electronics
Amazon.com: Aguilar Tone Hammer 500 Super Light 500 Watt Solid State Bass Amplifier Head with Drive Control, FX Loop and Balanced DI Output with Water Resistant Bag and Instrument Cable : Musical Instruments
Amazon.com: Rockford Fosgate R2-500X4 Prime 500-Watt 4-Channel Amplifier : Electronics
Amazon.com: Ampeg Portaflex Series PF-500 500-Watt Bass Amplifier Head : Musical Instruments
Amazon.com: BOSS Audio Systems MC900B Amplifier for ATV UTV Car Marine - 500 High Output, 4 Channel, 2/4 Ohm, Bluetooth Multi-Function Remote, RCA Out, Weatherproof, Use Amp with Stereo and Subwoofer, Crossover : Electronics
Amazon.com: Kenwood X502-1 eXcelon 500-Watt @ 2 Ohms Class D Subwoofer Amplifier : Electronics
Amazon.com: Stetsom Digital BASS DB 500.1 Mono Car Amplifier 2 Ohms, 500 Watts RMS, 2Ω Stable Car Audio, BASS Sound Quality, Crossover & Bass Boost, Car Stereo Speaker Subwoofer Woofer, Smart Coolers : Electronics
Amazon.com: Timpano Compact 4 Channel Amplifier Car Audio 500 Watt, 4 x 125 Watts at 2 Ohms, Mini Stereo 12 volts Full Range Class D Amp, Bridgeable Amplifier 4 Channels TPT-500.4 : Electronics