---
product_id: 45932263
title: "MB Quart Marine Powersports Nautic 2 Channel 400 Watt Maximum Power Full Range Class D Amplifier with PWM MOSFET Power, Black"
brand: "mb quart"
price: "€ 20.13"
currency: EUR
in_stock: false
reviews_count: 9
url: https://www.desertcart.com.cy/products/45932263-mb-quart-marine-powersports-nautic-2-channel-400-watt-maximum
store_origin: CY
region: Cyprus
---

# 400W max power output Waterproof marine-grade design Aluminum heatsink for rapid heat dissipation MB Quart Marine Powersports Nautic 2 Channel 400 Watt Maximum Power Full Range Class D Amplifier with PWM MOSFET Power, Black

**Brand:** mb quart
**Price:** € 20.13
**Availability:** ❌ Out of Stock

## Summary

> 🌊⚡ Ride the Soundwave with Power and Precision!

## Quick Answers

- **What is this?** MB Quart Marine Powersports Nautic 2 Channel 400 Watt Maximum Power Full Range Class D Amplifier with PWM MOSFET Power, Black by mb quart
- **How much does it cost?** € 20.13 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/45932263-mb-quart-marine-powersports-nautic-2-channel-400-watt-maximum)

## Best For

- mb quart enthusiasts

## Why This Product

- Trusted mb quart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Cool Under Pressure:** Aluminum heatsink and PWM MOSFET tech ensure your amp runs cooler and longer, even at low impedance.
- • **Precision Audio Control:** Variable low pass crossover and full/LPF/HPF switches let you tailor your sound with professional-grade clarity.
- • **Quick-Release Convenience:** Nickel-plated RCA connectors and quick disconnect wires make off-season storage effortless.
- • **Built to Brave the Elements:** Waterproof connectors and salt-spray resistance keep your amp performing no matter the weather.
- • **Power that Commands the Waves:** Unleash 400 watts of crystal-clear sound, perfect for your marine adventures.

## Overview

The MB Quart Nautic 2 Channel 400W Class D amplifier delivers robust marine-grade audio performance with waterproof connectors, 2x200W RMS power at 2 ohms, and advanced crossover controls. Its aluminum heatsink and PWM MOSFET technology ensure efficient heat management and consistent voltage, making it the ultimate sound upgrade for any boat or powersports vehicle.

## Description

'MB Quart compact Two Channel, 400 watt Powersports amplifier with on-board equalization and simple instalation with quick release connectors. Specifications CLASS Full Range Class D VARIABLE VOLTAGE 0.2V~9V SIGNAL TO NOISE RATIO>90dB FREQUENCY RESPONSE 20Hz-20kHz CROSSOVER TYPE Electronic 12dB Per Octave LOW PASS CROSSOVER SWITCH LOW PASS 300 HZ BASS BOOST 0-12dB@45Hz SUBSONIC FILTER 60Hz POWER @ 2-OHMS 2 x 250W POWER @ 4-OHMS 2 x 125W TOTAL CHANNELS 2 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 2.12 lbs (0.96 kg)'

Review: powerful yet very clean output great for high quality 6.5" or 6x9 speakers - Pack a clean punch to my premium Kicker marine 6.5" in my golf cart
Review: Great sound quality. - This little thing packs a punch. I have it on my RZR and it’s small enough to hide under the hood area and has more than enough power for my needs. I run this one with 4 Polk speakers and it sounds really nice. Would recommend!

## Features

- 2-channel waterproof boat sound amplifier with marine-specific connectors built to withstand extreme weather and salt spray; 2-channel operation with a flexible installation that allows for 2-channel or bridged mono mode
- Features 400-watt maximum power output and RMS power of 2 x 200 watts at 2 ohms and 2 x 100 watts at 4 ohms; Variable low pass crossover at 12dB per octave: 300Hz
- Low-noise preamplifier circuit maximizes power at low voltage without creating distortion, producing only quality music audio; Switched full, LPF, and HPF crossover with complete control over amplifier signal
- Aluminum heatsink dissipates heat quickly to allow the amp to run on lower impedance for longer duration; Simpatico coil design with PWM power supply keeps voltage constant through Ultra-Fi output devices
- Quick disconnect wires and RCA connections for quick removal during the off-season; RCA-nickel plated are high temperature and impact protected to provide secure connections

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06X16DLGT |
| Best Sellers Rank | #171,996 in Electronics ( See Top 100 in Electronics ) #82 in Marine Amplifiers |
| Brand | MB Quart |
| Brand Name | MB Quart |
| Customer Reviews | 4.6 out of 5 stars 181 Reviews |
| Included Components | NA2-400.2-FBA |
| Item Type Name | A-B Box |
| Item Weight | 2.1 pounds |
| Manufacturer | MB QUART |
| Material Type | Aluminum |
| Maximum Output Power | 400 watts |
| Model | NA24002 |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 400 watts |
| Package Type Name | Box |
| Part Number | NA24002 |
| Specification Met | Astm, Ipx5 |
| UPC | 806576227342 |
| Unit Count | 1 Count |
| Voltage | 9 volts |
| Warranty Description | N/a. |

## Product Details

- **Brand:** MB Quart
- **Manufacturer:** MB QUART
- **Mounting Type:** Surface Mount
- **Number of Channels:** 2
- **Voltage:** 9 Volts

## Images

![MB Quart Marine Powersports Nautic 2 Channel 400 Watt Maximum Power Full Range Class D Amplifier with PWM MOSFET Power, Black - Image 1](https://m.media-amazon.com/images/I/61i9kjrV1dL.jpg)
![MB Quart Marine Powersports Nautic 2 Channel 400 Watt Maximum Power Full Range Class D Amplifier with PWM MOSFET Power, Black - Image 2](https://m.media-amazon.com/images/I/61QhN4ndk2L.jpg)
![MB Quart Marine Powersports Nautic 2 Channel 400 Watt Maximum Power Full Range Class D Amplifier with PWM MOSFET Power, Black - Image 3](https://m.media-amazon.com/images/I/61+a8BqOjtL.jpg)

## Questions & Answers

**Q: Will this plug and play into ride command and rzr door speakers?**
A: Yes it plugs into the ride command behind the head unit. Not sure on the speakers since I run pods only but if the speakers you have are connected to the ride command it should be fine

**Q: Will this work to power one 10in sub?**
A: It pushes my two 8” mid range speakers well. Unfortunately I don’t think this amp is bridgable so it’s probably not the right choice for a single sub.

**Q: Is the 900w amp stereo or mono sub amp?**
A: It isn't 900 watts. It is 200x2 watts RMS at 2 ohms, so that is 400 watts total. It is fused with a single 30amp fuse.

**Q: Will this power a pair of 6.5 kicker ds door speakers and this plugs in your stereo**
A: Plugged right into my razor with ride command. It powers a pair of roll bar mounted speakers on mine just fine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ powerful yet very clean output great for high quality 6.5" or 6x9 speakers
*by J***T on December 19, 2025*

Pack a clean punch to my premium Kicker marine 6.5" in my golf cart

### ⭐⭐⭐⭐⭐ Great sound quality.
*by L***T on March 8, 2025*

This little thing packs a punch. I have it on my RZR and it’s small enough to hide under the hood area and has more than enough power for my needs. I run this one with 4 Polk speakers and it sounds really nice. Would recommend!

### ⭐⭐⭐⭐⭐ Great amp!
*by F***S on July 28, 2020*

I drop a a video just to show you guys the sound quality of the amp. It is connected with bluetooth and it still sounds awesome. I love this amp. Throws out an amazing amount of power easy to put anywhere. For any application. I used this on my Yamaha wave runner. I did the install myself and like I said before you can put it anywhere. This is a must buy. Especially for the price. Great job MB Quart!

## Frequently Bought Together

- MB Quart, 2 A-B Box, Black (NA24002)
- MB Quart NA2-400.1 Compact 400 watt Mono Powersports Amplifier to for a subwoofer
- MB Quart NA2-320.4 Compact Four Channel, 320 watt Powersports Amplifier, Black

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-08-25*