MB Quart DA2-520.4D Discus 520 Watt Waterproof Four Channel Amplifier. Compatible Vehicle Fitment Universal Marine Grade Protection / IPX Rating Meets or exceeds IP67 standards for waterproof and dustproof. Low Noise Preamplifier Circuit Q-Stasis Pre Amplifier Stage: Maximum low voltage signal from the source unit comes into the amplifier circuit with minimal distortion. RCA Inputs Prewired to PC Board for additional protection. Leave connector cover closed on RCA jacks that are not used. Crossover Type Variable electronic crossovers allow for complete control of the sound. Electronic Equalizer Control of amplifier output with on-board electronic crossover to tailor specific frequencies to speakers and subwoofers. Check specifications for specific frequencies for this amplifier. Class / Topology Class D: Highly efficient circuit topology which helps the amplifier develop a lot of power in a compact heatsink. Output Device Technology MB Quart output devices, FLUID-FETS are painstakingly selected for their ability to efficiently produce power and mimic the sound quality of the highest end home amplifiers. Heat Sink Heavy duty heat-sink efficiently moves heat from the MOSFET where it can be cooled. Power Supply Robust premium grade MOSFET Pulse Width Modulation power supply allows the amplifier to produce efficient power without taxing the electrical system. Output Connections Waterproof connectors designed to provide a secure moisture-resistant connection, ensuring reliable signal transmission and preventing corrosion or damage in environments exposed to water or humidity. Connection Type Waterproof connectors designed to provide a secure moisture-resistant connection, ensuring reliable signal transmission and preventing corrosion or damage in environments exposed to water or humidity. LED System Protection Circuitry Diagnostics Monitor overload and speaker short protection with illuminated indicators on the amplifier top mounted control panel. Additional Features Top Mounted Controls: Sound contouring with on-board crossover, bass boost, and adjustable input sensitivity are all concealed behind a sealed, top mounted cover. Details & Specs Type Amplifier Brand MB Quart Series Discus Category Marine, Mobile, Powersports Condition New Color Black Warranty 1 Year IPX Rating IP67 Compatible Vehicles Universal Amp Class Class D Amp Total Channels 4 Amp Max Power (watts) 520 Amp Power @ 2 Ohms (ch x watts) 4 X 130 Amp Power @ 4 Ohms (ch x watts) 4 X 90 Amp Mono Bridged @ 4 Ohms (ch x watts) 2 x 260 Amp Crossover Electronic Amp Variable High Pass Crossover 12dB per Octave Switched OFF/HPF/LPF 15Hz-300Hz Amp Variable Low Pass Crossover 12dB per Octave Switched OFF/HPF/LPF 50Hz-300Hz Amp Variable Voltage 0.2V-9V Amp Frequency Response 15Hz-300Hz Amp Power Terminal 12v/GND 4 AWG Amp Speaker Terminal Wire Gauge 12 AWG Amp Fusing 90A External Proposition 65 Notice WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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