Polaris Engineered Parts & Accessories
MB Quart Polaris Off-Road Grade Audio

NA2 Amplifiers

  • NA2-500.5

Big on Sound. Small on Size.
The NA2 compact amplifiers feature a proprietary full range Class D design that provides a very small footprint making these amps perfect for installation in applications where size matters. Each NA2 compact amplifier features a detachable wire harness that simplifies installation. Simply wire it up then plug it in!

 

Although these amps are small in size, they’re big on power (2 ohm stable). When it comes to features there is no shortage of controls necessary to dial your system in and there’s plenty of power on hand to satisfy the demands of nearly any speaker.

 

The NA2 series also offers a 5 channel amplifiers (NA2-500.5) which offers a very simple system solution which allows four full range speakers or tower speakers to be run off the four full range channels. Then, the 5th channel is left to power only the subwoofer. This creates a very simple, compact, yet power installation.

 

 

Life Shield
When you see this Life Shield badge on an MB Quart product, you can rest assured you are choosing a product that has been designed and tested against the elements. Whether it’s waterproof, dust proof, snow proof or shock proof, you will know that this product has been built to handle the outdoors.
Lifeshield
 

 

Nautic Subwoofers
System Controls
The five models of amplifiers are full of features to make installation simple. Including plenty of equalization and bass boost controls. Addtionally, the mono and 5 channel amplifiers include a bass remote which allows quick adjustment to the lower frequencies at an arms length
 

 

Nautic Subwoofers
Class D Power
Full range Class D high power technology delivers big sound while remaining very musical in a compact chassis.
 

 

Nautic Subwoofers
Massive Heatsink
Even with big power, the heavy duty extruded aluminum heatsink will keep the amplifier cool and prevent heat robbing distortions from ruining the music.
 

 

Conformal Coating
All MB Quart Nautic amplifiers are ABYC & ASTM certified which defines that marine amplifiers must use conformal coated PC boards to resist corrosion from salt spray & moisture.
 

 

To create the perfect system choose from the following MB Quart categories to power your system:
All MB Quart Nautic amplifiers are ABYC & ASTM certified which defines that marine amplifiers must use conformal coated PC boards to resist corrosion from salt spray & moisture.
 

 

COMPRESSION HORNS
MARINE AMPLIFIERS
 
SOURCE UNITS & BLUETOOTH™ CONTROLLERS
SHALLOW SUBWOOFERS

NA2-320.4 Amplifier

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Part#: NA2-320.4

Details:

MB Quart compact Four Channel, 320 watt Powersports amplifier

$189.99
Available at Best Buy Available at Crutchfield

Overview

Part #: NA2-320.4 | SKU: 806576227335 | Category: NA2 Amplifiers
Description
MB Quart compact Two Channel, 400 watt Powersports amplifier with on-board equalization and simple instalation with quick release connectors.

Specifications

Part #: NA2-320.4 | SKU: 806576227335 | Category: NA2 Amplifiers
  • Class
    Full Range Class D
  • Variable Voltage
    0.2V~9V
  • Signal to Noise Ratio
    >90dB
  • Frequency Response
    20Hz-20kHz
  • Crossover Type
    N/A
  • Crossover Frequency Range
    CH1 & CH2
    Switched HP/ Full
  • Crossover Frequency Range
    CH3 & CH4
    Switched HP/ Full
  • Bass Boost
    0-12dB@45Hz
  • Subsonic Filter
    N/A
  • Power @ 2-Ohms
    4 x 80W
  • Power @ 4-Ohms
    4 x 40W
  • Total Channels
    4
  • Audio Inputs
    RCA
  • Power Terminal 12v/GND
    Molex 10 ga
  • Speaker Terminal Wire Gauge
    Molex Plug Connector
  • Fusing
    1 x 30 Amps
  • Certifications
    Marine & Powersports
  • Dimensions
    3.70 X 5.51 X 1.77 in
    9.4 X 14.0 X 4.5 cm
  • Weight
    2.16 lbs (0.98 kg)

System Includes

Part #: NA2-320.4 | SKU: 806576227335 | Category: NA2 Amplifiers
More info in development & coming soon!

Features & Benefits

Part #: NA2-320.4 | SKU: 806576227335 | Category: NA2 Amplifiers
  • Marine Grade Protection: YES Amplifiers are ABYC & ASTM certified which defines that marine amplifiers must use conformal coated PC boards to resist corrosion from salt spray & moisture.
  • Pre-Amp Circuitry: Q-Stasis Pre Amplifier Stage The highly engineered Q-Stasis pre-amplifier stage reduces incoming noise from source units dramatically improving sound quality
  • Inputs: 2 Pair, RCA Nickel-Plated High temperature impact resistant with hex screw terminals that allow for secure connections and is erosion resistant
  • Operation Mode: Four channel operation Flexible installation allows this amplifier to run in four channel or bridged mono mode.
  • Crossover / Signal Shaping: Switched 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 Devices 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 Dissconect Wires, RCA Connections Quickly remove amplifer when you are putting machine up for the winter of as a security precaution
  • Connections Type: Nickel-plated connections Nickel plated corrosion resistant connections
  • Diagnostics: Three-stage protection circuits Monitor thermal, overload, DC, and speaker short protection with lighted indicators on the amplifier end panel
  • Marinized / Waterproof: YES Water resistant for durability in any environment

Technology

Part #: NA2-320.4 | SKU: 806576227335 | Category: NA2 Amplifiers
More info in development & coming soon!

Support

Part #: NA2-320.4 | SKU: 806576227335 | Category: NA2 Amplifiers
Files & Manuals

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Maxxsonics Factory Specials