Kicker CXA8001 800 Watt Mono Class D Subwoofer Amplifier
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2 Boss CXX12 12 2000W Car Audio Power Subwoofer Sub & Mono Amplifier & Amp Kit, 1 Piece - Pick 'n Save
Kenwood P-XW1221SHP 12" Preloaded Subwoofer Enclosure and X502-1 Mono Amplifier
SMP500 1000W Mono Subwoofer Amplifier | OSD Audio
Memphis PRXA600.1 Power Reference Series Mono Subwoofer Amplifier and 2 Memphis Audio PRXS1224 12” Power Reference Slim Subwoofer - Creative Audio
OSD 200W Mono Class D Subwoofer Amplifier 4Ohm Stable Auto-On Compact SMP200 | Being Patient