---
product_id: 749227904
title: "MB Quart NA2-400.1 Compact 400 Watt Mono Power Sport Amplifier for Subwoofer"
brand: "mb quart"
price: "$868"
currency: MXN
in_stock: false
url: https://www.desertcart.mx/products/749227904-mb-quart-na2-400-1-compact-400-watt-mono-power
store_origin: MX
region: Mexico
---

# 400W peak power output >100dB signal-to-noise ratio Onboard equalization & bass boost MB Quart NA2-400.1 Compact 400 Watt Mono Power Sport Amplifier for Subwoofer

**Brand:** mb quart
**Price:** $868
**Availability:** ❌ Out of Stock

## Summary

> 🔊 Unleash deep bass power anywhere, anytime!

## Quick Answers

- **What is this?** MB Quart NA2-400.1 Compact 400 Watt Mono Power Sport Amplifier for Subwoofer by mb quart
- **How much does it cost?** $868 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/749227904-mb-quart-na2-400-1-compact-400-watt-mono-power)

## 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

- • **Built for Adventure:** Marine and powersports certified, rugged enough to handle your active lifestyle.
- • **Crystal Clear Sound:** Class D full-range amplifier with >100dB signal-to-noise ratio ensures distortion-free audio.
- • **Seamless Integration:** Compact design with quick-release connectors and bus remote control for effortless installation.
- • **Powerhouse Performance:** Delivers up to 400 watts of clean, punchy bass for your subwoofer setup.
- • **Precision Bass Control:** Integrated bass boost and electronic 12dB/octave crossover for tailored low-end impact.

## Overview

The MB Quart NA2-400.1 is a compact, 400-watt mono Class D amplifier designed specifically for subwoofers. Featuring onboard equalization, bass boost, and a high signal-to-noise ratio over 100dB, it delivers clean, powerful bass with minimal distortion. Its quick-release connectors and bus remote control simplify installation, while marine and powersports certifications ensure durability in demanding environments.

## Description

The 'MB Quart Compact 400 Watt Mono Power Sport Amplifier is for subwoofers that can be easily installed with onboard equalization and quick release connectors. Bus Remote Control Included Specifications Class Full Range Class D Variable Voltage 0.2V to 9V Signal-to-Noise Ratio >100dB Frequency Response 10Hz - 300Hz Crossover Type Electronic 12dB Octave Crossover Frequency Range CH1 & CH2 Switch Low Pass 300Hz BASS Boost 0-12dB@45Hz Subsonic Filter 0Hz Power Supply @ 2-OHMS 1 x 500W Power @ 4-OHMS 1 x 250W Total Channel Mono Audio Input RCA Power Terminal 12V/GND Molex 10ga Speaker Terminal Wire Gauge Molex Plug Connector Fuse 1 x 3 0 Amp CERA TIFICATIONS Marine & Powersports Dimensions: 3.70 x 5.51 x 1.75 inches, 9.4 x 14.0 x 1.75 inches, weight 2.09 lbs (0.95 kg).

## Features

- Mb Quart Na2-400.1 Compact 400 Watt Mono Power Sport Amplifier for Subwoofer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Mbquart |
| Item model number | NA2-400.1 |
| ASIN | B06VT7XSYC |

## Product Details

- **Item dimensions L x W x H:** 2 x 4 x 6 inches
- **Voltage:** 9 Volts
- **Manufacturer:** Mbquart
- **Maximum Supply Voltage:** 9 Volts
- **Minimum Supply Voltage:** 0.2 Volts

## Images

![MB Quart NA2-400.1 Compact 400 Watt Mono Power Sport Amplifier for Subwoofer - Image 1](https://m.media-amazon.com/images/I/61h9gPb0wsL.jpg)
![MB Quart NA2-400.1 Compact 400 Watt Mono Power Sport Amplifier for Subwoofer - Image 2](https://m.media-amazon.com/images/I/71SqTCSaK9L.jpg)
![MB Quart NA2-400.1 Compact 400 Watt Mono Power Sport Amplifier for Subwoofer - Image 3](https://m.media-amazon.com/images/I/818xwIfAGoL.jpg)
![MB Quart NA2-400.1 Compact 400 Watt Mono Power Sport Amplifier for Subwoofer - Image 4](https://m.media-amazon.com/images/I/713Sib6gKTL.jpg)
![MB Quart NA2-400.1 Compact 400 Watt Mono Power Sport Amplifier for Subwoofer - Image 5](https://m.media-amazon.com/images/I/815VwbyOXQL.jpg)

## Questions & Answers

**Q: Can this get wet?**
A: No.  The terminals and cooling vents are not waterproof.  What makes these amplifiers preferable for recreational vehicles is that they have pigtail connections versus exposed wore terminals offering some protection to liquid splashes, but by no means waterproof.

**Q: is it marine rated?**
A: Yes

**Q: Does this amp have speaker (high) level inputs?**
A: No.  RCA inputs only.  You will need a LOC to convert to low level outputs.

**Q: I have a 2018 polaris with ride command, will this amp connect to the ride command head unit?**
A: Not sure better check with Polaris

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.mx/products/749227904-mb-quart-na2-400-1-compact-400-watt-mono-power](https://www.desertcart.mx/products/749227904-mb-quart-na2-400-1-compact-400-watt-mono-power)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-01-22*