Pyle 4-Channel Marine Amplifier for Boat Speakers, Full Range Audio Amp

FULL-RANGE 4-CHANNEL AMPLIFIER — This wired 4-channel amp boosts audio from your existing marine stereo, radio or media player out to your boat's speakers for noticeably fuller sound.
MONO BLOCK CAPABLE — Bridge the channels down for mono block operation, so you can add extra power to a single subwoofer channel alongside your regular speaker setup.
BUILT FOR BOATS, ATVS & MORE — With an IP-65 waterproof and weather-resistant rating plus a heavy-duty heatsink, it's designed for boats, ATVs, UTVs, Jeeps and other powersport vehicles.
SMOOTHER, SAFER SOUND — Anti-thump turn-on keeps pops away from your speakers, while overload and short-circuit protection helps it run reliably trip after trip.
EASY WIRED SET-UP — Wire it in via RCA or 3.5mm AUX from your stereo, radio or media player; connects by wire only, with no Bluetooth or built-in receiver.