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MB Quart NA4-400.1

400W RMS Class D Nautic Series Monoblock Marine and Powersports Amplifier with Bass Remote

MB Quart
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• 200 watts x 1 channel @ 4 ohm
• 400 watts x 1 channel @ 2 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable Monoblock Amplifier

Learn more about the na44001
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List price $214.99
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Description


MB Quart brand icon

Authorized dealer

Waterproof Monoblock Power for High-Impact Marine Bass

The MB Quart NA4-400.1 is a rugged, 400-watt monoblock amplifier engineered for the specific demands of marine and powersports environments. Utilizing a highly efficient Full Range Class D topology, this amplifier delivers high-output performance from an ultra-compact chassis, making it perfect for installations in space-constrained areas like under-seat compartments or dashboard cavities. Built with Life Shield protection, it is fully waterproof, dustproof, and salt-spray resistant, ensuring that your audio system remains powerful and reliable even in the most extreme outdoor conditions.

Product Details:

  • Nautic Series Class D 2 ohm Stable Monoblock Amplifier
  • RMS Power Rating:
    • 4 ohm: 200 watts x 1 channel
    • 2 ohm: 400 watts x 1 channel
  • Total RMS power output: 400 watts
  • LED Power/Protect Light
  • Wired bass level remote control included
  • Speaker-level (high-level) inputs (Requires adapter like the Kicker KISL)
  • 4-way protection circuitry (thermal, overload, DC, and speaker short protection)
  • Meets or exceeds IP67 standards for waterproof and dustproof
  • Potted internals seals components for added protection
  • Highly engineered Q-statis pre-amplifier stage reduces noise
  • Nickel plated RCA inputs to resist corrosion
  • PWM MOSFET power supply for minimal heat generation
  • Simpatico coil design to keep voltage constant through Ultra-Fi output devices
  • Aluminum heatsink to quickly dissipate heat
  • Quick connection power wires and RCA connections
  • Input sensitivity: 0.2 - 9 volts
  • Frequency Response: 17 - 165 Hz
  • Total Harmonic Distortion (THD): 1.0%
  • Signal to Noise Ratio: 100 dB
  • Variable low-pass filter: 50 - 150 Hz
  • Subsonic filter: 15 - 50 Hz
  • Variable Bass Boost: 0 - 12 dB
  • Fuse Rating: 30A
  • 12 AWG gauge amplifier wiring kit is recommended for installation
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: NA4-400.1


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Specifications & Details


Key Features
Amplifier Key Features
Bass Boost
Weather-Resistant
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms
200 watts x 1 channel
RMS Power @ 2 ohms
400 watts x 1 channel
Amplifier Specifications
Series
Nautic Series
Amplifier Class
D
Number of Channels
1 - Mono
Total RMS Power Output
400 watts
Maximum Input Gauge Size
12 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
Not Bridgeable
Frequency Response
17 - 165 Hz
THD at Rated RMS Power
1.0%
Speaker Level Inputs
Optional (Requires Accessory Adapter)
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
Subsonic
Low-Pass Crossover Frequency
50 - 150 Hz
Subsonic Filter
15 - 50 Hz
Signal-to-Noise Ratio
100 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
Yes
Fuse Rating
30A x 1 
Total Fuse Rating
30
Strappable
No
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
0.2 - 9 volts
High-Level Input Sensitivity
0.2 - 9 volts
What is in the box?
Paperwork
User manual
WITB: Amplifiers
Amplifier
Wired gain knob (wire attached)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

NA4-400.1

Weight:

2.20lbs

Internal SKU:

na44001

Internal Product ID:

230163

Customer Ratings & Reviews


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