BOSS Audio Systems R1004 4 Channel Car Amplifier - 400 Watts, Full Range, Class A/B, 2-4 Ohm Stable, Great For Car Speakers and Car Stereos : Amazon.com.au: Everything Else
Planet Audio PL2400.4 4-Channel 2400 Watts 2400W Power Car Amplifier w/ Remote 636210105800 | eBay
Massive Audio PX4 100W RMS 4-Channel Amplifier | Frankies Auto Electrics & Car Audio
BOSS Audio Systems PF1800 4 Channel Car Amplifier - 1800 Watts, Full Range, Class A-B, 2-4 Ohm Stable, Mosfet Power Supply, Bridgeable : Amazon.com.au: Electronics
5800W3800W2000W 4-Channel Car Amplifier Powerful Australia | Ubuy
Best 4 Channel Car Amplifier (Review & Buying Guide) in 2023
Car Amplifier: 5 Best 4 Channel Car Amplifier in 2020 | Best Car Amplifiers (Buying Guide) - YouTube
CT Sounds 4 Channel Car Audio Amplifier- Full Range, Bass Boost Frequency, Monoblock D Class, Bridged, High Level Inputs - CT80.4 : Amazon.com.au: Electronics
Timpano Compact 4 Channel TPT500.4 Car Audio Amplifier – 4x 125 Watts at 2 Ohms – Mini Stereo 12 volts Full Range Class D Amp Bridgeable : Amazon.com.au: Electronics
Black Diamond DIA-1250.4 Car Audio Amplifier – 4 Channel, Full Range, Class Ab, 1250 Watts : Amazon.com.au: Electronics