MB Quart Nautic Series NA3-1000.5 Marine Class SQ Amplifier (1,000 Watts Max, 5 Channels, with Bass Remote) - NO Tax

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MSRP: $479.99
Was: $399.99
Now: $379.90
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Brand New MB Quart Nautic Series NA3-1000.5 Marine Class SQ Amplifier (1,000 Watts Max, 5 Channels, with Bass Remote) - 1 Year Warranty

The MB Quart NA3-1000.5 is a 1,000 watt 5-channel marine amplifier with a bass remote. It is waterproof and dustproof, and has marine-specific connectors. It also features top-mounted sound contouring with onboard crossovers, bass boost, and adjustable input sensitivity all concealed behind top-mounted controls. It also uses SMT (Surface Mount Technology) for easier placement and installation. In addition, circuit engineers can design better circuits for power and sound quality as the tolerances of SMT components are superior to larger "through-hole" components. Because of their lower mass, SMT components withstand shock and vibration, making them perfect for audio designed for all vehicles. So use this amplifier in marine, powersports, vehicle, and RV applications.


  • 1,000 watts max; 150 watts x 4 channels + 200 watts x 1 channel at 2 ohms; 75 watts x 4 channels + 100 watts x 1 channel at 4 ohms
  • Ideal for marine, powersports, and other rugged applications to power up to 4 speakers and a subwoofer; selectable 2, 4, or 5-channel modes
  • Frequency response: 10 Hz to 45 kHz for faithful sound reproduction
  • Marine-grade IPX standards for waterproofing and dustproofing
  • Nautic gloss-white epoxy finish helps reject heat on the surface of the amplifier; connections from amp are sealed and grommeted; prewired to PC board for additional protection; connector cover should be left closed on RCA jacks that are not used
  • Robust, marine-grade MOSFET Pulse Width Modulation power supply allows amp to product efficient power without taxing the boat's electrical system
  • Utilizes MB Quart's unique Class SQ topology that is matched with Q-Stasis for sonic accuracy and clarity that exceeds standard Class A/B amplifiers
  • FLUID-FETS are painstakingly selected for their ability to efficiently produce power and mimic the sound quality of the highest-end home amplifiers
  • Auto-sense feature for high-level inputs; variable electronic crossovers allow for complete control of the sound; monitor overload and speaker short protection with illuminated indicators on the amp's end panel
  • DC signal sense switch will allow the amp to turn on when a signal is received on the RCA inputs, so an amp remote turn-on wire is not needed to turn amp on; feature can be turned off
  • SMT (Surface Mount Technology) for larger tolerances from human placement; components withstand shock and vibration making them perfect for audio designed for all vehicles
  • Includes harness, remote, installation hardware, Allen wrench, installation guide, and sticker

Amplifier Application: Powersports/Marine Audio
Maximum Frequency Range: 45.0000 KILOHERTZ
Minimum Frequency Range: 10.0000 HERTZ
Signal to Noise Ratio (Clean): >90dB
Resistant Properties: Water Resistant
Voltage Rating (Master): 9 VOLT
Peak Power Rating: 1000.0000 WATT
Total Harmonic Distortion: <0.15%
Primary Color: Multicolored
Product Height: 2.2500 INCH
Product Length: 14.2500 INCH
Product Weight: 7.1500 POUND
Product Width: 6.0000 INCH
Battery Information: Product does not require a battery
Battery 2 Information: Not Applicable
Warranty Info: 1 Year warranty

WARNING(CA P65): Cancer and Reproductive Harm -

Warranty Information

1 Year Warranty


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