ZR 4-Channel Class D Amplifier 4 x 400 Watts Rms @ 4-ohm
Mb Quart Marine Powersports Nautic 2 Channel 400 Watt Maximum Power Full Range Class D Amplifier With 6.5 Inch Marine 3 Grills Speaker Pair : Target
12v 400 Watt 2.1channel Car Audio Stereo Amplifier Speaker Power Class A / B Amp - Multi-tone & Claxon Horns - AliExpress
Amazon.com: KICKER 46CXA4001T CXA400.1 400 Watt RMS Mono Class D Car Audio Amplifier Amp : Electronics
Kicker 46CXA400.1T CX Series mono subwoofer amplifier — 400 watts RMS x 1 at 1 ohm at Crutchfield
4 Ch. Class D, Full-Range Car/Marine Amplifier, 400 W | Audio Express | Western United States
2 Channel Car Stereo Amplifier - 400W Dual Channel High Power Audio Sound Auto Small Speaker Amp with LED Light and Remote Control, Support SD/USB/MP3/FM/Radio - Walmart.com
Rockford Fosgate Power 400 Watt Amplifier | plexaudio
12V 400 Watt Car Audio Stereo Amplifier 2.1Channel HiFi Speaker Power Amp System | eBay
2.1Channel Car Audio Stereo Amplifier 12V 400 Watt Speaker HIFI Power Subwoofer | eBay