by ECOXGEAR 1-Channel Mono EV High Definition Amplifier Marine Grade Compact Class D 750W Peak Output Waterproof Dustproof for 48V to 72V Electric Vehicles Only

750 WATTS PEAK OUTPUT - delivering a continuous output of 300W RMS to 1 channel to drive a single subwoofer for powerful sound [180W at 4 Ohms, 250W at 3 Ohms, or 300W at 2 Ohms]; BUILT-IN DSP CROSSOVER CONTROLS - offer the broadest frequency filter adjustable from [20Hz to 400Hz, 24dB per octave] for high pass and [40Hz to 400Hz, 24dB per octave] for low pass LOUD AND CLEAR RUGGED POWER - incorporating the top-tier Texas Instruments High Definition Class D amplifier for high power and low distortion in a compact marine-grade design; ADJUSTABLE BASS AND TREBLE CONTROLS - make this compact amplifier the standard for powering subwoofers or even audiophile dedicated tweeters with 3 settings for Bass [50Hz, 100Hz, 200Hz +/- 10dB] and 3 settings for Treble [1kHz, 3kHz, 8kHz +/- 10dB] SUPPORTS PRE-AMP AND SPEAKER LINE INPUTS - with its built-in high to low converter (speaker wire to RCA jack cable not included); POWER SUPPLY - designed for use on golf carts and electric vehicles with an electrical system that operates in a voltage range of 43V to 82V 100% WATERPROOF AND DUSTPROOF (IP67) - diecast aluminum chassis is sealed to keep all the components free of water, dirt, sand, and salt; even rinse it off with a hose WHAT IS IN THE BOX - 1x Mono EV Amplifier with 11-inch pigtails, 1x 5A (400W) Fuse, 4x 1-inch Self Tapping Screws, and a User Guide