---
product_id: 91148612
title: "MB Quart Formula 2 Way Coaxial 90W 4 x 6 Inch Car Speakers with 4 Ohms Impedance"
brand: "mb quart"
price: "€ 91.46"
currency: EUR
in_stock: true
reviews_count: 11
category: "Mb Quart"
url: https://www.desertcart.be/products/91148612-mb-quart-formula-2-way-coaxial-90w-4-x-6
store_origin: BE
region: Belgium
---

# 45W RMS power handling 90W peak power 4 ohms impedance MB Quart Formula 2 Way Coaxial 90W 4 x 6 Inch Car Speakers with 4 Ohms Impedance

**Brand:** mb quart
**Price:** € 91.46
**Availability:** ✅ In Stock

## Summary

> 🎶 Upgrade your commute with sound that commands attention!

## Quick Answers

- **What is this?** MB Quart Formula 2 Way Coaxial 90W 4 x 6 Inch Car Speakers with 4 Ohms Impedance by mb quart
- **How much does it cost?** € 91.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/91148612-mb-quart-formula-2-way-coaxial-90w-4-x-6)

## 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

- • **Upgrade Your Ride:** Perfect for replacing blown stock speakers and elevating your daily drive’s soundtrack.
- • **Compact Yet Impactful:** 4x6 inch size fits perfectly in standard car mounts without sacrificing sound quality.
- • **Power Meets Precision:** Deliver crisp, undistorted sound with 90W peak and 45W RMS power handling.
- • **Seamless Compatibility:** 4-ohm impedance for easy integration with most car audio systems.
- • **Optimized Audio Clarity:** Aluminum dome tweeters and polypropylene cones ensure rich highs and deep bass.

## Overview

The MB Quart Formula 2 Way Coaxial 4x6 inch car speakers deliver a balanced audio experience with 90 watts peak power and 45 watts RMS, featuring aluminum dome tweeters and polypropylene cones for clear highs and deep bass. Designed with 4-ohm impedance, these speakers fit standard car mounts and provide a reliable upgrade from stock audio systems.

## Description

The ideal balance of a high end car audio system requires the idealmix of speaker tone, deep bass impact and clean undistorted power. The MB Quart Formula Series of speakers provide the base for a great sounding, impeccable system. These 4 in. x 6 in. Formula Series 2-Way Coaxial Speakers have aluminum dome tweeters with polypropylene cone speakers. Peak handling power on these 4 in. x 6 in. car speakers is 90 watts; RMS is 45 watts.

Review: Perfect for flip cars with blown speakers - Bought for a car I bought to fix and flip. They produce sound and were the cheapest in this size.
Review: Better than stock for a car. Not good enough for a boombox build. - Better than stock by far. If you want a simple upgrade after blowing a stock speaker, This is for you. If you want something badass then look for a heavy hitting brand.

## Features

- Specs
- 45-watt rms power handling
- 90-watt peak power handling
- Speaker impedance: 4 ohms
- Sensitivity: 88dB

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DL91ZQN |
| Age Range Description | Adult |
| Antenna Location | Music |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #77,710 in Electronics ( See Top 100 in Electronics ) #761 in Car Coaxial Speakers |
| Brand | MB Quart |
| Built-In Media | product, manual |
| Color | Black |
| Compatible Devices | Laptop |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Control Method | Voice |
| Controller Type | Voice control |
| Customer Reviews | 4.3 out of 5 stars 200 Reviews |
| Enclosure Material | Plastic |
| Frequency Response | 6 KHz |
| Global Trade Identification Number | 00806576228349 |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 17"D x 15.25"W x 9.75"H |
| Item Type Name | Speakers |
| Manufacturer | MAXXSonics |
| Model Name | FKB146 |
| Model Number | FKB146 |
| Mounting Type | Car Mount,Coaxial |
| Number of Audio Channels | 2 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Series Number | 146 |
| Speaker Maximum Output Power | 90 watts |
| Speaker Size | 4 inches |
| Speaker Type | Coaxial |
| Specific Uses For Product | Car Audio Systems |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 5.94 inches |
| Tweeter Diameter | 3.84 inches |
| UPC | 806576228349 |
| Unit Count | 2 Count |
| Warranty Description | 1 year |
| Warranty Type | Limited |
| Wireless Technology | Coaxial |
| Woofer Diameter | 5.94 inches |

## Product Details

- **Brand:** MB Quart
- **Speaker Maximum Output Power:** 90 Watts
- **Frequency Response:** 6 KHz
- **Connectivity Technology:** Coaxial
- **Audio Output Mode:** Surround

## Images

![MB Quart Formula 2 Way Coaxial 90W 4 x 6 Inch Car Speakers with 4 Ohms Impedance - Image 1](https://m.media-amazon.com/images/I/71xN1KMBtEL.jpg)
![MB Quart Formula 2 Way Coaxial 90W 4 x 6 Inch Car Speakers with 4 Ohms Impedance - Image 2](https://m.media-amazon.com/images/I/618wAZPsYmL.jpg)
![MB Quart Formula 2 Way Coaxial 90W 4 x 6 Inch Car Speakers with 4 Ohms Impedance - Image 3](https://m.media-amazon.com/images/I/61-bzlx4DKL.jpg)
![MB Quart Formula 2 Way Coaxial 90W 4 x 6 Inch Car Speakers with 4 Ohms Impedance - Image 4](https://m.media-amazon.com/images/I/51M3XFpejJL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Questions & Answers

**Q: Does these come with grill covers? If so im buying them yo add with my 6x9 mb quarts in the front door but if they don't have the grills i can't use**
A: No they don't come with grill covers

**Q: Single or pair?**
A: They  come in pairs.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for flip cars with blown speakers
*by C***G on May 27, 2026*

Bought for a car I bought to fix and flip. They produce sound and were the cheapest in this size.

### ⭐⭐⭐⭐ Better than stock for a car. Not good enough for a boombox build.
*by M***N on March 24, 2026*

Better than stock by far. If you want a simple upgrade after blowing a stock speaker, This is for you. If you want something badass then look for a heavy hitting brand.

### ⭐⭐⭐⭐⭐ I like them
*by J***B on July 27, 2025*

I really like these little speakers. They're cheap and they work good. They're not very bass. The mids and treble are okay though. Pair this with a nice subwoofer and you'll be good.

## Frequently Bought Together

- MB Quart FKB146 Formula Series 2-Way Coaxial Speakers (4" x 6")
- MB Quart FSB216 Formula Series 6.5" Component Speaker System
- MB Quart FKB169 MB Quart Formula 6 x 9-Inch 2-Way Car Speakers, Black

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.be/products/91148612-mb-quart-formula-2-way-coaxial-90w-4-x-6](https://www.desertcart.be/products/91148612-mb-quart-formula-2-way-coaxial-90w-4-x-6)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-09-23*