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MB Quart NA2-400.2RC, Nautic 2 Channel Compact Powersports Subwoofer Amplifier - 400 Watt
Marine Grade Protection / IPX Rating
Amplifiers are ASTM certified which defines that marine amplifiers must use conformal coated PC boards to resist corrosion from salt spray & moisture. IPX5
Low Noise Preamplifier Circuit
The highly engineered Q-Stasis pre-amplifier stage reduces incoming noise from source units dramatically improving sound quality.
RCA Inputs
1 pair high temperature impact resistant nickel-plated RCA inputs with hex screw terminals that allow for secure connections and is erosion resistant.
Operation Mode
Flexible installation allows this amplifier to run in two channel or bridged mono mode.
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 Disconnect Wires, RCA Connections: Quickly remove amplifier when you are putting machine up for the winter of as a security precaution.
Connection Type
Nickel-plated connections: Nickel plated corrosion resistant connections.
LED System Protection Circuitry Diagnostics
Three-stage protection circuits: Monitor thermal, overload, DC, and speaker short protection with lighted indicators on the amplifier end panel.
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to