Marine Certified 4-Channel Class D Car Amplifier RMS Power Handling: 4 ohms: 75 watts x 4 chan. 2 ohms: 100 watts x 4 chan. Bridged, 4 ohms: 200 watts x 2 chan. Cutting-edge Micro Class D technology allows amplifiers to be extremely compact LED power (blue) and protect (red) indicators Conformal Coated Marine grade circuit board 2 or 4 channel operation Balanced Differential Inputs, to eliminate noise picked up by signal cables Speaker-level (high-level) inputs 3-way protection circuitry (thermal, overload, and speaker short protection) Input sensitivity: 0.2V-5V Selectable crossover modes: FULL / HPF / LPF Variable high-pass filter (40-500 Hz) Variable low-pass filter (40-500 Hz) Frequency Range: 20 - 20KHz Total Harmonic Distortion: <0.3% CEA-2006 compliant amplifier 8 gauge power and ground wiring is recommended for installation. Dimensions: 3.4"W x 7.2"L x 1.45"H 1-year Warranty from the Original Purchase Date ?? ???????????????? ??????????????????????: Experience the NVX VADM4's impressive power, boasting a peak power rating of 800 Watts and RMS power output ranging from 80 watts x 4 channels at 4 ohms to 125 watts x 4 channels at 2 ohms. Enjoy robust and reliable audio performance for your car, marine vessel, or powersports vehicle. ?? ?????????????? ????????????:Utilizing cutting-edge Micro Class D technology, this amplifier achieves an extremely compact form factor, measuring just 6.49" L x 3.3" W x 1.48" H. Enjoy powerful sound without sacrificing valuable space in your vehicle or marine setup. ?? ???????????? ?????????????????? ????????????????????: Built with a conformal coated marine-grade circuit board, the VADM4 amplifier is designed to withstand the rigors of marine environments, ensuring durability and longevity even in harsh conditions. ?? ???????????????? ????????????????: Benefit from LED power and protect indicators, as well as 4-way protection circuitry (thermal, overload, speaker short protection, and DC offset) for enhanced reliability. Balanced differential inputs and low-level RCA inputs ensure seamless integration with your existing audio system. ?? ?????????????????? ?????????? ??????????????????????????: Customize your audio experience with selectable crossover modes (FULL, HPF, LPF), variable high-pass and low-pass filters (40-400 Hz), and a wide frequency range of 20-20,000 Hz. Achieve precise control over your sound output for an optimized listening experience.