Amazon.com: BOSS Audio Systems BE8AE Elite Series Car Audio Amplifier 8 Inch Subwoofer Package – 400 Watt Sub with Passive Radiator, Built-in Class D Monoblock Amplifier, for Truck Boxes and Enclosures Stereo :
400W 2*200W Stereo Hifi Car Home Subwoofer car Sound audio Amplifier Amp Sound Speaker Digital EDR Audio LED Design amplifiers _ - AliExpress Mobile
Amazon.com: BOSS Audio Systems BE8AE Elite Series Car Audio Amplifier 8 Inch Subwoofer Package – 400 Watt Sub with Passive Radiator, Built-in Class D Monoblock Amplifier, for Truck Boxes and Enclosures Stereo :
Kicker 46CXA400.1t 400-Watt Mono Class D Subwoofer Amplifier: 46CXA4001t
Kicker CXA400.1 - 400W Mono Class D Subwoofer Amp - 46CXA4001T