---
product_id: 45932263
title: "Marine Powersports Nautic 2 Channel 400 Watt Maximum Power Full Range Class D Amplifier with PWM MOSFET Power, Black"
brand: "mb quart"
price: "¥34429"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/45932263-marine-powersports-nautic-2-channel-400-watt-maximum-power-full
store_origin: JP
region: Japan
---

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

**Brand:** mb quart
**Price:** ¥34429
**Availability:** ✅ In Stock

## Summary

> ⚓ Amplify your marine adventures with power and precision — don’t just ride the waves, own them!

## Quick Answers

- **What is this?** 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?** ¥34429 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/45932263-marine-powersports-nautic-2-channel-400-watt-maximum-power-full)

## 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 keep your amp running 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.
- • **Effortless Seasonal Setup:** Quick disconnect wires and nickel-plated RCA connectors make off-season removal and reinstallation a breeze.
- • **Built to Brave the Elements:** Waterproof construction and marine-specific connectors ensure durability against salt spray and harsh weather.
- • **Power That Commands the Waves:** Delivers up to 400 watts max power with crystal-clear RMS output for immersive marine sound.

## Overview

The MB Quart Nautic 2 Channel Marine Amplifier delivers robust 400-watt max power in a compact, waterproof design tailored for extreme marine environments. Featuring advanced PWM MOSFET technology, variable crossovers, and rapid heat dissipation, it ensures high-fidelity sound and reliable performance on the water. Quick-release connectors simplify seasonal maintenance, making it the ultimate audio upgrade for boaters who demand power, durability, and precision.

## 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)'

## 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 |
|---------------|-------|
| Item Weight | 2.12 pounds |
| Product Dimensions | 2 x 4 x 6 inches |
| Item model number | NA24002 |
| Is Discontinued By Manufacturer | No |
| Warranty | N/a. |

## Product Details

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

## Images

![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)

## 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.

## 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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**Shop now:** [https://www.desertcart.jp/products/45932263-marine-powersports-nautic-2-channel-400-watt-maximum-power-full](https://www.desertcart.jp/products/45932263-marine-powersports-nautic-2-channel-400-watt-maximum-power-full)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-23*