DS18 PRO-GM6.4PK Mid and High Complete Package - Includes 2X Midrange Loudspeaker 6" and 2X Aluminum Super Bullet Tweeter 1" Built in Crossover - Door Speakers for Car or Truck Stereo Sound System

Taramps TS 800x4 2 Ohms 4 Channels High Level Individual Input, 800 watts RMS Full Range, RCA Inputs Crossover High/Low Pass, Bridge, Multi-Channel Amplifier Car Audio System Class D

Taramps TS 400x4 with Automatic High Level Input 400 watts RMS 4 Channels Full Range Car Audio Amplifier RCA Input Class D 2 Bridged Channels Multichannel Amplifier System

BOSS Audio Systems R1004 Riot Series Car Amplifier - 400 High Output, 4 Channel, 2/8 Ohm, High/Low Level Inputs, Full Range, Hook Up to Stereo and Subwoofer, Class A/B, IC (Integrated Circuit)

Lanzar 4-Channel High Power MOSFET Amplifier - Slim 2000 Watt Bridgeable Mono Stereo 4 Channel Car Audio Amplifier w/ Crossover Frequency&Bass Boost Control, RCA input,Line Output - Lanzar VCT4110

Lanzar