---
product_id: 92283613
title: "FKB108 Formula Series 2-Way Coaxial Speakers (3.5\"), 9.90in. x 5.90in. x 2.80in."
brand: "mb quart"
price: "$93.24"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/92283613-fkb108-formula-series-2-way-coaxial-speakers-3-5-9
store_origin: US
region: United States of America
---

# 6kHz Frequency 400W Power Bluetooth & Wired FKB108 Formula Series 2-Way Coaxial Speakers (3.5"), 9.90in. x 5.90in. x 2.80in.

**Brand:** mb quart
**Price:** $93.24
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Audio Game!

## Quick Answers

- **What is this?** 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?** $93.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/92283613-fkb108-formula-series-2-way-coaxial-speakers-3-5-9)

## 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:** Butyl rubber surrounds provide durability and enhance mid-bass impact, making these speakers a long-term investment.
- • **📏 Compact Yet Powerful:** With dimensions of 9.90in x 5.90in x 2.80in, these speakers fit perfectly in any space without compromising on sound quality.
- • **🔗 Versatile Connectivity:** Enjoy seamless audio with both wired and Bluetooth options, perfect for any setup.
- • **🎉 Immerse Yourself in Sound:** Experience a wide soundstage with WIDESHERE technology, ensuring every listener feels included.
- • **🔊 High-Performance Tweeters:** Aluminum dome tweeters deliver crisp highs and natural music reproduction for an unparalleled audio experience.

## Overview

The MB Quart FKB108 Formula Series 2-Way Coaxial Speakers deliver exceptional sound quality in a compact design. Featuring WIDESHERE technology for a broad listening area, aluminum dome tweeters for high output, and durable butyl rubber surrounds for enhanced bass, these speakers are perfect for any surround sound system. With both wired and Bluetooth connectivity, they offer versatility for all your audio needs.

## Description

MB Quart FKB108 Formula Series 2-Way Coaxial Speakers (3.5"), 9.90in. x 5.90in. x 2.80in.

## 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 |
|---------------|-------|
| Subwoofer Connectivity Technology | Wired |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Bluetooth |
| Audio Driver Type | Dynamic Driver |
| Item Weight | 1.96 Pounds |
| Item Dimensions D x W x H | 5.9"D x 9.9"W x 2.8"H |
| Unit Count | 2.0 Count |
| Power Source | Corded Electric |
| Number of Audio Channels | 2.0 |
| Frequency Response | 6 KHz |
| Speaker Maximum Output Power | 400 Watts |
| Compatible Devices | Amplifier |
| Speaker Size | 3.5 Inches |
| Tweeter Diameter | 2.54 Centimeters |
| Controller Type | Remote Control |
| Color | Black |
| Is Waterproof | False |
| Control Method | Voice |
| Audio Output Mode | Stereo |
| Mounting Type | Car Mount,Coaxial |
| Speaker Type | Coaxial |
| Additional Features | Pure copper voice coi |
| Recommended Uses For Product | For Surround Sound Systems |
| Subwoofer Diameter | 9.9 Inches |

## Product Details

- **Brand:** MB Quart
- **Speaker Maximum Output Power:** 70 Watts
- **Frequency Response:** 80 Hz
- **Connectivity Technology:** Coaxial
- **Audio Output Mode:** Stereo

## Images

![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

## 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)

---

## 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.us/products/92283613-fkb108-formula-series-2-way-coaxial-speakers-3-5-9](https://www.desertcart.us/products/92283613-fkb108-formula-series-2-way-coaxial-speakers-3-5-9)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-19*