Best 4 Channel Amplifier

Donner 4 Channel Bluetooth 5.0 Stereo Audio Power Amplifier, 1000W Home Theater Stereo Receiver with USB, SD, FM, 2 Mic in Echo, RCA, LED, Speaker Selector for Studio, Home Use - MAMP5

Rockford Fosgate TM400X4AD Power Marine Amplifier, 400 Watt 4 Channel

Rockford Fosgate R2-500X4 500W 4-Channel Class-D Full Range Car Audio Amplifier

Recoil DI550.4 Full-Range Class-D 4-Channel Car Audio Amplifier, 1,040 Watts Max Power, 2-4 Ohm Stable, Mosfet Power Supply, Bridgeable

BOSS AUDIO R2504 Riot 1000-Watt Full Range, Class A/B 2-8 Ohm Stable 4 Channel Amplifier with Remote Subwoofer Level Control

PIONEER GM-A6704 4-Channel Bridgeable Amplifier with Bass Boost, Black/Red

Kenwood KACM1814 Compact 4-Channel Amplifie

Rockford Fosgate PBR400X4D 400 Watt Full-Range Punch Compact Chassis 4 Channel Amp Amplifier

Skar Audio RP-75.4ABM 500 Watt Full-Range Class A/B 4-Channel Marine Amplifier

Taramps TS 400x4 400 watts RMS 4 Channels Full Range Car Audio Amplifier, 2 Bridged Channels, RCA Input Class D, Output Power, Multichannel Amplifier System, Small - TS400X4