MB Quart NA4-320.4 Nautic compact 320 watt four channel powersports amplifier with waterproof potted internals and quick release connectors. Compatible Vehicle Fitment Universal Marine Grade Protection / IPX Rating Meets or exceeds IP67 standards for waterproof and dustproof. Potted Internals: The potting material seals the components, insulating them and ensuring better durability, especially in harsh environments where exposure to moisture or water might otherwise cause short circuits, corrosion, or other performance issues. Low Noise Preamplifier Circuit The highly engineered Q-Stasis pre-amplifier stage reduces incoming noise from source units dramatically improving sound quality. RCA Inputs 2 pair high temperature impact resistant nickel-plated RCA inputs that allow for secure connections and are corrosion resistant. Operation Mode Four channel operation Crossover Type Dial Switch OFF / HP: Complete control of amplifier signal, essential when using two or more amplifiers. Class / Topology Full Range Class D: Highly efficient circuit topology which helps the amplifer develop a lot of power in a very small heatsink. Output Device Technology PWM MOSFET Power Supply: Stable power through the PC board with minimal heat generation. Heat Sink Aluminum: Quickly dissapates heat to allow the amplifer to run lower impedance for longer duration. Power Supply Simpatico Coil Design: The dual coil Pulse Width Modulated power supply keeps voltage constant through the Ultra-Fi output devices. Output Connections Quick Connection Power Wires and RCA Connections. Connection Type Nickel-plated connections: Nickel plated corrosion resistant connections. LED System Protection Circuitry Diagnostics Protection circuits: Monitor thermal, overload, DC, and speaker short protection with lighted indicators on the amplifier end panel. Details & Specs Type Amplifier Brand MB Quart Series Nautic Category Marine, Powersports Condition New Color Black Model Replaced NA2-320.4 Warranty 1 Year IPX Rating IP67 Compatible Vehicles Universal Amp Class Full Range Class D Amp Total Channels 4 Amp Max Power (watts) 320 Amp Power @ 2 Ohms (ch x watts) 4 x 80 Amp Power @ 4 Ohms (ch x watts) 4 x 40 Amp Crossover Electronic Amp Variable High Pass Crossover 12dB per Octave Fixed HP 80Hz Amp Variable Voltage 0.2-9V Amp Signal to Noise > 95dB Amp Frequency Response 13Hz-29kHz Amp Total Harmonic Distortion (THD) 1.0% Amp Speaker Level Audio Inputs RCA Amp Power Terminal 12v/GND 12 AWG Quick Connector Amp Speaker Terminal Wire Gauge Molex Plug Connector Amp Fusing 30A x 1 Proposition 65 Notice WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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