DS18 Ultra Compact Full Range Class D 4-Channel Amplifier 1320 Watts
Amazon.com: Douk Audio 4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver M4 : Electronics
RD400/4 - Car Audio - Amplifiers - RD - JL Audio
Fp10000q 10000W 4 Channel 2 Ohms Stable Professional Audio Amplifier, High Power Amplifier - China High Power Amplifier and 10000W Audio Amplifier price | Made-in-China.com
GEN-X Full-Range Class D 4-Channel Amplifier 4 x 150 Watts Rms @ 4-ohm
Down4Sound JP234 | 2000w 4 Channel Amplifier
AudioControl D-4.800 D Series 4-channel car amplifier with digital signal processing — 125 watts x 4 at Crutchfield