---
product_id: 263061758
title: "MB QuartFormula 4 Inch 80 Watt 2 Way Coaxial Car Audio Speaker Pair with Built in 1 Inch Tweeters for Vehicle Sound System , Black"
brand: "mb quart"
price: "€ 178.23"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.hr/products/263061758-mb-quartformula-4-inch-80-watt-2-way-coaxial-car
store_origin: HR
region: Croatia
---

# 2-Way Audio 40W RMS Power Cooling System MB QuartFormula 4 Inch 80 Watt 2 Way Coaxial Car Audio Speaker Pair with Built in 1 Inch Tweeters for Vehicle Sound System , Black

**Brand:** mb quart
**Price:** € 178.23
**Availability:** ✅ In Stock

## Summary

> 🎉 Elevate Your Drive with MB Quart Speakers!

## Quick Answers

- **What is this?** MB QuartFormula 4 Inch 80 Watt 2 Way Coaxial Car Audio Speaker Pair with Built in 1 Inch Tweeters for Vehicle Sound System , Black by mb quart
- **How much does it cost?** € 178.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/263061758-mb-quartformula-4-inch-80-watt-2-way-coaxial-car)

## 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 to Last:** High-temperature adhesive and heavy gauge frames for ultimate durability.
- • **Bass That Hits:** Butyl rubber surrounds deliver deep, clean mid-bass impact.
- • **Power Up Your Ride:** 40W RMS and 80W peak power for a sound system that truly rocks.
- • **Unleash Your Sound:** Experience a wider listening area with WideSphere Technology.
- • **Stay Cool Under Pressure:** Innovative cooling system ensures longevity and performance.

## Overview

The MB Quart FKB110 Formula Car Speakers are a pair of 4-inch coaxial speakers designed for superior audio performance in your vehicle. With a power handling of 40 watts RMS and 80 watts peak, these speakers feature aluminum dome tweeters, a robust cooling system, and durable construction to ensure high-quality sound and longevity.

## Description

MB QuartFormula 4 Inch 80 Watt 2 Way Coaxial Car Audio Speaker Pair with Built in 1 Inch Tweeters for Vehicle Sound System , Black

## Features

- Aluminum Dome Tweeters – The tweeters utilize WideSphere Technology for exceptional musical reproduction, developing a wider listening area for off axis listening, creating a sweet spot in the sound stage from even the smallest speakers.
- Superior Bass – MB Quart Formula speakers use butyl rubber surrounds to provide durability and deeper mid-bass impact with clean, undistorted power to create the high quality sound system your vehicle needs.
- Cooling System – The over-coil air exchange allows air to pass over the voice coil through the spider, and Kapton voice coil former material is lightweight and efficiently dissipates heat making for a long lasting, high quality sound system.
- Durable – The cone-to-surround connection utilizes high-temperature adhesive which assures the cone and surround do not separate in high power uses or extremes of weather, and the heavy gauge stamped steel frames ensure ultimate rigidity.
- Power Handling - The RMS Power Handling of these speakers operate at 40 Watts and Peak Power Handling at 80 watts. With Speaker Impedance of 4 OHMS, these speakers bring the sound system in your car to life.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Power Source | DC |
| Number of Power Levels | 2 |
| Speaker Maximum Output Power | 80 Watts |
| Subwoofer Connectivity Technology | Wired |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Item Weight | 2 Pounds |
| Item Dimensions D x W x H | 2.9"D x 12.2"W x 6.2"H |
| Unit Count | 2.0 Count |
| Number of Audio Channels | 2.0 |
| Frequency Response | 6 KHz |
| Compatible with Vehicle Type | Car |
| Speaker Size | 4 Inches |
| Number of Ethernet Ports | 2 |
| Controller Type | Voice control |
| Color | Black |
| Is Waterproof | FALSE |
| Control Method | Voice |
| Audio Output Mode | Surround |
| Mounting Type | Car Mount,Coaxial |
| Speaker Type | Coaxial |
| Additional Features | Voice Coil, Power Handling |
| Recommended Uses For Product | Musical,Car |

## Product Details

- **Brand:** MB Quart
- **Speaker maximum output power:** 80 Watts
- **Frequency response:** 6 KHz
- **Connectivity technology:** Coaxial
- **Audio output mode:** Surround
- **Mounting type:** Ceiling Mount
- **Material:** Polypropylene, Aluminium
- **Model name:** FKB110
- **Speaker type:** Subwoofer
- **Special feature:** Voice Coil, Power Handling

## Images

![MB QuartFormula 4 Inch 80 Watt 2 Way Coaxial Car Audio Speaker Pair with Built in 1 Inch Tweeters for Vehicle Sound System , Black - Image 1](https://m.media-amazon.com/images/I/51vPZjaSMjL.jpg)

## Questions & Answers

**Q: How deep is the mounting depth?**
A: They are not 3" deep. There's some sites showing 3" and they are wrong. The box they come in isn't even 3".  They are 1.8" deep from magnet to frame face. The tweeter sticks out maybe another 1/4 ".

**Q: The price shown is it for 2 speakers or just 1 speaker?**
A: It’s a pair. You get 2 Speakers.

**Q: Do they come with grills?**
A: No they do not!

**Q: How many peak watts**
A: Per MB Quart:
RMS POWER HANDLING
40 Watts
PEAK POWER HANDLING
80 Watts
SPEAKER IMPEDANCE
4 Ohms
FREQUENCY RESPONSE
55Hz - 19kHz
SENSITIVITY
88dB
CROSSOVER POINT
6kHz
CROSSOVER SLOPE
12dB
MOUNTING DIAMETER / CUT OUT
3.69
OUTSIDE DIAMETER
5.39
MOUNTING DEPTH / CHASSIS DEPTH
3

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Low price, great sound
  

*by E***N on Reviewed in the United States on 26 October 2024*

Bought these as replacements for the blown front door speakers in my 1998 Audi A4 and they sound even better than the stock 6.5" coaxials that are still in the rear.  The mounting was a little tricky but that is the fault of audio using a proprietary 3-point mounting system. Ended up cutting up the old blown speakers and epoxying these into the old frames. Even with that extra spacing of the homemade adapter ring, they are small enough to easily fit in the doors. Would definitely recommend, especially at the $28 sale price.

### ⭐⭐⭐⭐⭐ 







  
    良いです。
  
  

*by ア***ー on Reviewed in Japan on 26 November 2023*

安くても MBクオートです。しっかり高音出てます。

### ⭐⭐⭐⭐⭐ 







  
  
    Amazing for the price
  

*by J***N on Reviewed in the United States on 5 May 2024*

I installed these in my 88 Dodge Ram 50 aka Mitsubishi max. For the price….they can’t be beat. $26 shipped to my door and bam…the ole river truck sounds amazing. I don’t normally do reviews but if want great sound from a small package…look no further.

## Frequently Bought Together

- MB Quart Formula 4 Inch 80 Watt 2 Way Coaxial Car Audio Speaker Pair with Built in 1 Inch Tweeters for Vehicle Sound System , Black
- 2) New MB QUART FKB-116 6.5" 150W 2 Way Car Audio Speakers Coaxial PAIR
- MB Quart FSB216 Formula Series 6.5" Component Speaker System

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**Shop now:** [https://www.desertcart.hr/products/263061758-mb-quartformula-4-inch-80-watt-2-way-coaxial-car](https://www.desertcart.hr/products/263061758-mb-quartformula-4-inch-80-watt-2-way-coaxial-car)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-01*