MB Quart MBQNA36006 6 Channel waterproof amplifier

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Experience Unparalleled Marine Audio with the NA3-600.6 Nautic 600 Watt Amplifier by MB Quart

Elevate your aquatic sound adventure with the NA3-600.6 Nautic 600 Watt Amplifier. Designed by MB Quart, a name synonymous with audio excellence, this 6-channel marine amplifier promises to redefine your marine audio experience.


  • Marine Grade Protection / IPX Rating: Meet or exceed IPX standards for waterproofing and dustproofing, ensuring that your amplifier is ready to handle the challenges of marine environments.

  • Low Noise Preamplifier Circuit: The Q-Stasis Pre Amplifier Stage ensures the cleanest possible signal transfer from your source unit to the amplifier, minimizing distortion for premium sound quality.

  • RCA Inputs: Pre-wired to the PC board, the amplifier provides added protection. Unused RCA jacks can be covered to maintain durability and reliability.

  • High Level Inputs: Take advantage of the Auto-Sense Feature for seamless integration with high-level inputs.

  • Flexible Operation Modes: Select from 2, 4, or 6 channel operation modes to tailor the amplifier to your audio setup.

  • Variable Electronic Crossovers: Enjoy complete control over your sound with variable electronic crossovers, allowing precise customization.

  • Electronic Equalizer: Fine-tune your audio experience with the onboard electronic crossover, shaping specific frequencies for optimal performance. Refer to specifications for precise frequencies.

  • Class SQ Topology: The amplifier's multi-channel design features MB Quart's unique Class SQ topology, delivering sonic accuracy and clarity that surpasses standard Class A/B amplifiers.

  • FLUID-FETS Technology: Equipped with meticulously selected FLUID-FETS output devices, the amplifier efficiently produces power while emulating the sound quality of high-end home amplifiers.

  • Efficient Heat Dissipation: The Nautic gloss white epoxy finish enhances heat rejection, while the heavy-duty heat sink efficiently transfers heat from the MOSFET for reliable performance.

  • Robust Power Supply: Featuring a marine-grade MOSFET Pulse Width Modulation power supply, the amplifier generates efficient power without taxing your boat's electrical system.

  • Sealed Output Connections: The amplifier's output connections are sealed and grommeted for enhanced protection and durability.

  • LED System Protection Circuitry Diagnostics: Monitor overload and speaker short protection with illuminated indicators on the amplifier's end panel, ensuring longevity.

  • Included Bass Remote: The NA3-600.6 amplifier comes with a bass remote, allowing you to make subtle bass adjustments from your listening position.

  • Auto Turn-On Convenience: The DC SIGNAL SENSE feature eliminates the need for an amplifier remote turn-on wire. The amplifier turns on automatically upon receiving a signal on the RCA inputs.

  • SMT Inside for Superior Performance: Surface Mount Technology enhances circuit design, power, and sound quality. SMT components offer superior tolerances and resistance to shock and vibration, making them ideal for vehicle audio systems.

Discover the future of marine audio with the NA3-600.6 Nautic 600 Watt Amplifier. Whether you're cruising the waves or anchored by the shore, immerse yourself in a sonic adventure that MB Quart brings to every note.

Extra Information

MB Quart