---
product_id: 92283613
title: "MB Quart FKB108 Formula Series 2-Way Coaxial Speakers (3.5\"), 9.90in. x 5.90in. x 2.80in."
brand: "mb quart"
price: "€ 31.14"
currency: EUR
in_stock: false
reviews_count: 13
url: https://www.desertcart.gr/products/92283613-mb-quart-fkb108-formula-series-2-way-coaxial-speakers-3
store_origin: GR
region: Greece
---

# Aluminum dome tweeters 70W peak power Butyl rubber surrounds MB Quart FKB108 Formula Series 2-Way Coaxial Speakers (3.5"), 9.90in. x 5.90in. x 2.80in.

**Brand:** mb quart
**Price:** € 31.14
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Upgrade your drive with sound that commands attention!

## Quick Answers

- **What is this?** MB Quart FKB108 Formula Series 2-Way Coaxial Speakers (3.5"), 9.90in. x 5.90in. x 2.80in. by mb quart
- **How much does it cost?** € 31.14 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/92283613-mb-quart-fkb108-formula-series-2-way-coaxial-speakers-3)

## 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

- • **Pure Copper Voice Coil Power:** Strong magnetic field ensures efficient power handling and distortion-free performance.
- • **Sleek, Rigid ABS Gasket Seal:** Engineered for a perfect fit and vibration-free mounting, delivering consistent sound clarity.
- • **Durable Butyl Rubber Surrounds:** Built to last with enhanced mid-bass impact for deep, punchy sound that stands the test of time.
- • **Immersive WIDESHERE Soundstage:** Experience a broad 'sweet spot' that fills your car with rich, clear audio from every seat.
- • **Precision Aluminum Dome Tweeters:** Enjoy crisp highs and natural music reproduction that elevate your driving soundtrack.

## Overview

The MB Quart FKB108 Formula Series 2-Way Coaxial Speakers (3.5") deliver a powerful 70W peak output with aluminum dome tweeters and polypropylene cones for clear, natural sound. Featuring butyl rubber surrounds and a pure copper voice coil, these speakers ensure durability and deep mid-bass impact. Designed for easy car mounting with a rigid ABS gasket seal, they create an immersive widesphere audio experience perfect for any vehicle.

## Description

The ideal balance of a high end car audio system requires the ideal mix 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 3-1/2 in. Formula Series 2-Way Coaxial Speakers have aluminum dome tweeters with polypropylene cone speakers. Peak handling power on these 3-1/2 in. car speakers is 70 watts; RMS is 35 watts.

Review: Inexpensive and sounds awesome! - Replaces the front 2 dash speakers in a stock 2020 Subaru Forester, now my music sound so lively and much better than stock, even with the stock head unit this speaker shines. Will be replacing my door panel speakers soon with the same brand as well.
Review: Good sound for the size. - Cursed with 3.5.rear speakers in a 370Z, I decided to try these to make the best of it. Definitely sound better than the factory paper-coned Bose speakers. Great price for what you get for sure!

## Features

- WIDESHERE creates a large "sweet spot" for all listeners, even from the smallest speakers
- Aluminum dome tweeters deliver high output, extended frequency response & natural music reproduction
- Butyl rubber surrounds provide durability & deeper mid-bass impact
- Textured ABS gasket assures a rigid linear seal to the mounting surface
- Pure copper voice coil creates a strong magnetic field with a very thin extrusion

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07D5LPK6J |
| Additional Features | Pure copper voice coi |
| Antenna Location | For Surround Sound Systems |
| Audio Driver Size | 8.8 centimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #215,873 in Electronics ( See Top 100 in Electronics ) #2,466 in Car Coaxial Speakers |
| Brand | MB Quart |
| Built-In Media | product, manual |
| Color | Black |
| Compatible Devices | Car Audio System, Car Stereo System, Smartphone, Tablet |
| Compatible with Vehicle Type | & SUVs, Select Cars, Truck |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Control Method | Voice |
| Customer Reviews | 4.4 out of 5 stars 381 Reviews |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS), Aluminum |
| Frequency Response | 80 hertz |
| Global Trade Identification Number | 00806576228325 |
| Is Waterproof | False |
| Item Dimensions D x W x H | 17"D x 15.25"W x 9.75"H |
| Item Type Name | Speakers |
| Item Weight | 2 pounds |
| Manufacturer | MAXXSonics |
| Model Name | FKB108 |
| Model Number | FKB108 |
| Mounting Type | Car Mount,Coaxial |
| Number of Audio Channels | 2 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Series Number | 108 |
| Speaker Maximum Output Power | 35 watts |
| Speaker Size | 3.5 inches |
| Speaker Type | Coaxial |
| Specific Uses For Product | PA |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 9.9 inches |
| Tweeter Diameter | 2.54 centimeters |
| UPC | 806576228325 |
| Unit Count | 1 Count |
| Warranty Description | 1 year |
| Warranty Type | Limited |
| Wireless Technology | No Wireless Communication Technology |
| Woofer Diameter | 3.5 inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** MB Quart
- **Connectivity Technology:** Coaxial
- **Frequency Response:** 80 hertz
- **Speaker Maximum Output Power:** 35 watts

## Images

![MB Quart FKB108 Formula Series 2-Way Coaxial Speakers (3.5"), 9.90in. x 5.90in. x 2.80in. - Image 1](https://m.media-amazon.com/images/I/6129+oiRpuL.jpg)

## Questions & Answers

**Q: Do these come as a pair?**
A: Comes as a pair in the single box.

**Q: are the pair 400w**
A: No 200w each

**Q: is it 4 ohms?**
A: Yes 4 ohms

**Q: Will these fit on a 2002 dodge ram dash. they ask for 3.5. thee say 3.5 in title but 2.8 in product detail?**
A: 3.5 will fit. Anything smaller will be tweeters

## Customer Reviews

### ⭐⭐⭐⭐⭐ Inexpensive and sounds awesome!
*by H***N on December 10, 2024*

Replaces the front 2 dash speakers in a stock 2020 Subaru Forester, now my music sound so lively and much better than stock, even with the stock head unit this speaker shines. Will be replacing my door panel speakers soon with the same brand as well.

### ⭐⭐⭐⭐⭐ Good sound for the size.
*by R***X on October 9, 2024*

Cursed with 3.5.rear speakers in a 370Z, I decided to try these to make the best of it. Definitely sound better than the factory paper-coned Bose speakers. Great price for what you get for sure!

### ⭐⭐⭐⭐ Great small speaker but with its downfalls?
*by T***E on April 19, 2021*

The MB Quartz name implies a great sounding speaker and these do not disappoint...well maybe just a little. While this 3.5 inch speaker does well with factory head units and it can replace factory 3.5 speakers as well. If you want better bass response these will give you that BUT don't expect a thumper especially from such a small speaker..however it's there and you will here the difference. Now as far the mids goes this is where they shine..they sound excellent...no. complaints...now here's where it's a matter of deep opinion and it concerns the highs. These sound very good overall BUT the highs are a little harsh...even when adjusting the DSP on the amp and adjusting the tone control on the head unit. Some may like the teeny sound and with alot of the music I prefer they sound okay just a little harsh. If you play alot of rock/pop/country this is the speaker for you BUT if you play rap/electronic/new jazz then they may sound a little teeny on the highs. So is it a great little speaker or no? Well in my opinion YES it just wasn't what I was looking for from a 3.5 2 way speaker. But hey it's my ears and opinion but you may hear and think otherwise.

## Frequently Bought Together

- MB Quart FKB108 Formula Series 2-Way Coaxial Speakers (3.5"), 9.90in. x 5.90in. x 2.80in.
- MB Quart FKB169 MB Quart Formula 6 x 9-Inch 2-Way Car Speakers, Black
- MB Quart FKB116 Formula Car Speakers (Black, Pair) – 6.5 Inch Coaxial Speakers, 60 Watt, 3-Way Car Audio, Internal Crossover, 1 Inch Tweeters (Grills Not Included)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-09-24*