Garage
Shop

See all parts that fit your 2002 S-Type

MB Quart NA4-400.2RC

400W RMS Class D Nautic Series 2-Channel Marine and Powersports Amplifier (Polaris RIDE COMMAND Compatible)

MB Quart
Shop all MB Quart
highlight-star-icon

• 100 watts x 2 channel @ 4 ohm
• 200 watts x 2 channel @ 2 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 2-Channel Amplifier
• Compatible with Polaris RIDE COMMAND source units

Learn more about the na44002rc
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $219.99
Thanks , You Pay:
-9%

$199.99

 with warranty
Starting at $19/mo or 4 payments of $50 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

Heads up

Your vehicle can use this product in multiple locations. Only a quantity of one can be selected from the product page. You will have the option to adjust the quantity within your cart.

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Dollar Icon
VIP Product Get $20.00 in rewards to spend later
Quantity
Available: Ships in 10-14 days
Brand new

Buy it now


Acima Logo

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Extend logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Hassle-free immediate replacement within minutes!
  • Easy online claims 24/7
  • Covers product breakdowns and failures
Swoosh Icon Icon of Swoosh

For over 25 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award winning icon
Award-Winning Service
Shipping icon
FREE Shipping Orders $49+
60 days return policy icon
60-Day Easy Returns
lowest price guarantee icon
Guaranteed Lowest Price
inHouseExpert
In-House Experts
NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

124
-33.36%

$79.96

List price $119.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00

MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99

SXE-1726S main

Alpine SXE-1726S

440W Peak (80W RMS) 6.5" SXE Series 2-way 4-ohm Coaxial Car Speakers

13
-21.82%

$42.99

List price $54.99

GX608C main

JBL GX608C (GX608CAM)

420W Peak (140W RMS) 6.5” GX Series 2 Way 2.3-ohm Component Speaker System

7

Description


MB Quart brand icon

Authorized dealer

Professional-Grade Power for Extreme Environments

The MB Quart NA4-400.2RC is a high-performance 400W 2-channel amplifier engineered specifically for the rigors of marine and powersports applications. Compatible with Polaris RIDE COMMAND source units, this compact powerhouse utilizes advanced Full Range Class D topology to deliver massive output while remaining small enough to fit in tight installation spaces, such as UTV steering columns or small boat compartments. With an IPX5 rating (and meeting IPX67 standards for certain components), the amplifier is fully waterproof and dustproof, featuring conformal-coated circuit boards to resist corrosion from salt and moisture. Designed for seamless integration, it includes specialized connectors and nickel-plated, erosion-resistant hardware, making it the ultimate audio upgrade for enthusiasts who refuse to let the elements stop the music.

Product Details:

  • Nautic Series Class D 2 ohm Stable 2-Channel Amplifier
  • Compatible with Polaris RIDE COMMAND source units
  • RMS Power Rating:
    • 4 ohm: 100 watts x 2 channel
    • 2 ohm: 200 watts x 2 channel
  • Total power output: 400 watts
  • LED Power/Protect Light
  • 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: 80 - 20000 Hz
  • Total Harmonic Distortion (THD): 1.0%
  • Signal to Noise Ratio: 105 dB
  • Variable high-pass filter: Fixed at 80 Hz
  • Fuse Rating: 30A
  • 12 AWG gauge amplifier wiring kit is recommended for installation
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: NA4-400.2RC


Best selling similar products

VADM4v2 small

NVX VADM4 v2 (VADM4v2)

• 80 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(41)

$209.99

List price $239.99

VAD10004v2 small

NVX VAD10004 v2 (VAD10004v2)

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(25)

$279.99

List price $335.99

VAD11005v2 small

NVX VAD11005 v2 (VAD11005v2)

• 80 watts x 4 channel + 350 watts x 1 channel @ 4 ohm
• 125 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel Amplifier

(46)

$349.99

List price $419.99

VAD17001v2 small

NVX VAD17001 v2 (VAD17001v2)

• 800 watts x 1 channel @ 4 ohm
• 1350 watts x 1 channel @ 2 ohm
• 1700 watts x 1 channel @ 1 ohm
• Total RMS Power: 1700 watts
• Class D 1 ohm Stable Monoblock Amplifier

(36)

$259.99

List price $335.99

VAD22008v2 small

NVX VAD22008 v2 (VAD22008v2)

• 150 watts x 6 channel + 250 watts x 2 channels @ 4 ohm
• 225 watts x 6 channel + 400 watts x 2 channels @ 2 ohm
• Bridged: 450 watts x 3 channel + 850 watts x 1 channel @ 4 ohm
• Total RMS Power: 2200 watts
• Class D 2 ohm Stable 8-Channel Amplifier

(2)

$399.99

List price $539.99

VAD10001v2 small

NVX VAD10001 v2 (VAD10001v2)

• 420 watts x 1 channel @ 4 ohm
• 760 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

(38)

$209.99

List price $227.99

MVPA4 small

NVX MVPA4

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(70)

$279.99

List price $383.99

VADM1 small

NVX VADM1 v2 (VADM1v2)

• 240 watts x 1 channel @ 4 ohm
• 400 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

(16)

$189.99

List price $239.99

M2-750X5 small

Rockford Fosgate M2-750X5

• 50 Watts x 4 + 200 Watts x 1 @ 4 ohm
• 100 Watts x 4 + 350 Watts x 1 @ 2 ohm
• 200 Watts x 2 + N/A @ 4 ohm Bridged/Mono
• 5-Channel Amplifer
• Element Ready™ design protects against outdoor exposure
• Top Mounted Control Panel

(1)

$569.99

List price $569.99

KS-DR2001D small

JVC KS-DR2001D

• 200 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

$339.00

List price $359.00

Specifications & Details


Key Features
Amplifier Key Features
Weather-Resistant
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
100 watts x 2 channel
RMS Power @ 2 ohms
200 watts x 2 channel
Amplifier Specifications
Series
Nautic Series
Amplifier Class
D
Number of Channels
2-Channel
Total RMS Power Output
400 watts
Maximum Input Gauge Size
12 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
Not Bridgeable
Frequency Response
80 - 20000 Hz
THD at Rated RMS Power
1.0%
Speaker Level Inputs
Optional (Requires Accessory Adapter)
Preamp Outputs
No
Built-in Crossover
High-Pass (HP)
High-Pass Crossover Frequency
0 - 80 Hz
Signal-to-Noise Ratio
105 dB
Remote bass/level controller
No
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
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

NA4-400.2RC

Weight:

2.20lbs

Internal SKU:

na44002rc

Internal Product ID:

230162

Customer Ratings & Reviews


MB Quart NA4-400.2RC thumbnail image

5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


47KBRW8_2 small

Kicker 47KBRW8 ReFLEX - Pair

8" Passive Radiator - Get more bass without ported enclosure

(1)

$99.98

List price $119.98

9800145001 small

Magellan RoadMate 1412

4.3" Widescreen TFT-LCD Plug-n-Play GPS Navigation Unit with 2D/3D Mapping and SD Card Slot

(1)

$219.99

List price $349.99

ATH-M50x small

Audio Technica ATH-M50x (Black)

On-ear Professional Studio Monitor Headphones with Detachable Cable (ATHM50x-BK)

(16)

$169.00

List price $169.00

No picture

Garmin USA Nuvi 770

4.3" TFT-LCD Portable Navigation Unit with Built-in Bluetooth Technology

$579.99

List price $699.99

RFAP-0020 small

Powerbag (rfap-0020) 6000mAH Battery

For Use as Spare or to Increase Battery Capacity of Powerbag

(1)

$49.00

List price $49.00

Momentum On-Ear Black small

Sennheiser MOMENTUM On-Ear Headphones - Smart Black

Premium Leather Padded On-Ear Audiophile Headphones with Closed-Back Studio Design and Carrying Case

(5)

$99.95

List price $229.95

SEI-SECSTRX small

Sound Extreme by ECOXGEAR SEI-SECSTRX

Extreme EcoCast Receiver

$59.99

List price $69.99

010-10997-00 small

Garmin 010-10997-00 Heart Rate Monitor

Heart Rate Monitor for Edge, Colorado, Oregon and Forerunner Units

$39.99

List price $59.99

PRO-ZXI6.4BM, XBAF65, SDSK2, SDRLR1, BTK106 small

Hertz CK 165F with Speaker Installation Kit

300W RMS 6.5" 4-Ohm Midrange Car Speaker + 6.5" Speaker Baffles, Sound Dampening, Roller, and Panel Removal Kit

(257)

$205.43

List price $249.61

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

1987 Chrysler Conquest

2011 Dodge Charger

1981 Jeep J20

1978 Dodge B Series

2002 Jaguar S-Type

2007 Mazda Mazdaspeed3

1977 Ford Thunderbird

1973 Ford Custom 500

2023 Kia Soul

1980 Ford Granada

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.