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: Audiobank 2X AB-790 6x9 -Inches 1000 Watts Peak Power for Pair and 300 Watt RMS Power 4-Way Car Audio Stereo Coaxial Speakers with 4 Ohm Ohm Impedance / 93dB/1w/1m : Electronics
Harmony Audio HA-A122 Car Stereo Alloy Series 12" Sub 1000W Dual 2 Ohm Subwoofer : Electronics - Amazon.com
Amazon.com: PRV AUDIO 6.5 Inch Midrange Speaker 6MR500-NDY-4, 500 Watts Max Power, 4 Ohm, 2 in Voice Coil, 250 Watts RMS, Neodymium Magnet, Smooth Full Range Response Through 13kHz for Car Audio
Amazon.com: Audiopipe APMB-8 8 Inch 500 Watt 8 Ohm Low/Mid Bass Frequency Car Audio Loudspeaker with 2 Inch TIL Voice Coil (4 Pack) : Electronics