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BOSS Audio Systems R1004 4 Channel Car Amplifier – Riot Series, 400 Watts, Full Range, Class A/B, 2 Ohm Stable, IC (Integrated Circuit) Great for Car Speakers and Car Stereos
Pyle 4 Channel Marine Amplifier - Compact Power 400 Watt RMS 4 OHM Full Range Stereo & Waterproof - Wireless Bluetooth Receiver Audio Speaker with LCD Digital Screen - PFMRA440BB
Amazon.com: 2 X 400Watt Class D Audio Amplifier Board Compact - T-AMP : Electronics
Pyle 4 Channel Marine Amplifier - Compact Power 400 Watt RMS 4 OHM Full Range Stereo & Waterproof - Wireless Bluetooth Receiver Audio Speaker with LCD Digital Screen - PFMRA440BB
Amazon.com: Scosche 400-watt Single Amplificador Kit : Electrónica
Amazon.com: PYLE PLMRA400 Amplificador de 4 canales, de 400 W, 4 canales : Electrónica
New BOSS Audio R1004 400 Watt 4 Channel Car Power Amplifier Mosfet+8 Ga Amp Kit
Amazon.com: MUSYSIC SYS-2000 High Power Amplifier – Dual Channel 2000 Watts Peak Output for Distortion Free and Clear sound 2U Chassis Professional Power Amplifier with ATR Technology XLR 1/4Inch Input for Speakers :
Pyle Hydra Marine Amplifier - Upgraded Elite Series 400 Watt 2 Channel Micro Amplifier - Waterproof, GAIN Level Controls, RCA Stereo Input, 3.5mm Jack & Volume Control (PLMRMP1A)
Amazon.com: KICKER CX400.1 400 Watt Class D Mono Amplifier for Car Audio Speakers, Black : Electronics
Amazon.com: Pyle Hydra Marine Amplifier - Amplificador de 400 vatios de 4 canales de la serie Elite mejorada, impermeable, controles de nivel de ganancia, entrada estéreo RCA, conector de 0.138 in, MP3
Amazon.com: Pyle Hydra Marine Amplifier - Amplificador de 400 vatios de 4 canales de la serie Elite mejorada, impermeable, controles de nivel de ganancia, entrada estéreo RCA, conector de 0.138 in, MP3
Amazon.com: BOSS Audio Systems MR1004 Marine Grade 400 Watt, 4 Channel, 2 4 Ohm Stable Class AB, Full Range Amplifier : Everything Else
Amazon.com: ATOTO CA-AEC01 Car Amplifier, 4 Channel, 400 Watts Max Power, 2/4 Ohm Stable, Class A/B, Only Compatible with Selected ATOTO Car Stereos : Electronics