---
product_id: 4879476
title: "DEI 050331 Boom Mat Speaker Baffles, 6.5\" Round Slim (Pack of 2)"
brand: "design engineering"
price: "$38.37"
currency: USD
in_stock: true
reviews_count: 8
category: "Design Engineering"
url: https://www.desertcart.us/products/4879476-dei-050331-boom-mat-speaker-baffles-6-5-round-slim
store_origin: US
region: United States of America
---

# 6.5" driver size Closed-cell polyethylene Universal slim fit DEI 050331 Boom Mat Speaker Baffles, 6.5" Round Slim (Pack of 2)

**Brand:** design engineering
**Price:** $38.37
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your ride’s sound game with pro-grade clarity and style!

## Quick Answers

- **What is this?** DEI 050331 Boom Mat Speaker Baffles, 6.5" Round Slim (Pack of 2) by design engineering
- **How much does it cost?** $38.37 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/4879476-dei-050331-boom-mat-speaker-baffles-6-5-round-slim)

## Best For

- design engineering enthusiasts

## Why This Product

- Trusted design engineering brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Speaker Protection:** Water-resistant barrier extends speaker lifespan
- • **Sleek, Slim Profile:** Thin design fits tight spaces for a seamless, professional look
- • **Universal Compatibility:** Fits most 6.5" speakers for versatile installation
- • **Precision Sound Isolation:** Enhances frequency response for crystal-clear audio
- • **Noise & Vibration Dampening:** Reduces panel reverberation and road noise for immersive sound

## Overview

Design Engineering DEI 050331 Boom Mat Speaker Baffles are slim, 6.5-inch round acoustic shields made from closed-cell polyethylene. They improve sound clarity by isolating frequency responses and reducing panel vibrations, while offering a sleek, universal fit that protects speakers from moisture and extends their durability. Ideal for professional-grade audio upgrades in vehicles.

## Description

Boom Mat speaker baffles maximize speaker performance by isolating the correct frequency responses while damping reverberation in the sheet metal and panel to frame resonance. Also forms a water tight protective shell to prevent moisture intrusion. Closed cell polyethylene enhances frequency response for improved sound clarity Easy conformability in tight spaces for a professional installation Isolates frequency responses and prevents sound from migrating to unfavorable areas in the vehicle such as door panels.

Review: Great product - Used with install of speakers in my 1975 VW Bus, provides great sound and protection to speakers.
Review: Easy install - Fits great. Makes speakers sound great.

## Features

- Closed-cell polyethylene enhances frequency response for improved sound clarity.Fit Type: Universal Fit
- Easy conformability in tight spaces for a professional installation
- Thin material design offers less bulk for a clean and tight installation for professional finished appearance
- Reduces panel-to-frame and door panel reverberation and road noise for improved acoustics
- Acts as a protective guard for exposed speakers and extends their lifespan

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0039YWT80 |
| Additional Features | Waterproof |
| Audio Driver Size | 6.5 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #5 in Powersports Speaker Systems #93 in Speaker Parts & Components |
| Brand | Design Engineering |
| Built-In Media | Design Engineering Boom Mat Speaker Baffles- Pair - 6.5" Round Slim |
| Color | Black |
| Compatible Devices | Laptop, Smartphone, Tablet, Television |
| Compatible with Vehicle Type | UTVs, fairings, saddle bags |
| Connectivity Technology | Bluetooth |
| Control Method | Touch |
| Customer Reviews | 4.4 out of 5 stars 6,953 Reviews |
| Enclosure Material | Plastic |
| Global Trade Identification Number | 00607078503312 |
| Is Waterproof | FALSE |
| Item Height | 8 centimeters |
| Item Type Name | Design Engineering Boom Mat Speaker Baffles- Pair - 6.5" Round Slim |
| Item Weight | 0.01 Pounds |
| MP3 player | No |
| Manufacturer | Design Engineering |
| Material | Plastic |
| Model Name | Design Engineering Boom Mat Speaker Baffles- Pair - 6.5" Round Slim |
| Model Number | 50331 |
| Mounting Type | Tabletop Mount |
| Number of Audio Channels | 2.0 |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Series Number | 50331 |
| Speaker Size | 6.5 Inches |
| Speaker Type | Specialty Speaker |
| Subwoofer Diameter | 6.5 Inches |
| UPC | 607078503312 |
| Warranty Description | Not applicbale |
| Warranty Type | Limited |
| Wireless Technology | No Wireless Communication Technology |
| Woofer Diameter | 6.5 Inches |

## Product Details

- **Brand:** Design Engineering
- **Audio Output Mode:** Stereo
- **Mounting Type:** Tabletop Mount
- **Model Name:** Design Engineering Boom Mat Speaker Baffles- Pair - 6.5" Round Slim
- **Speaker Type:** Specialty Speaker

## Images

![DEI 050331 Boom Mat Speaker Baffles, 6.5" Round Slim (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/61W82hmZpVL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by R***O on November 17, 2025*

Used with install of speakers in my 1975 VW Bus, provides great sound and protection to speakers.

### ⭐⭐⭐⭐⭐ Easy install
*by B***D on September 17, 2025*

Fits great. Makes speakers sound great.

### ⭐⭐⭐⭐ They have their ups and downs
*by M***E on May 8, 2014*

I recently put these in the driver/passenger side doors of my 2000 subaru rs sedan with 6.5 in Polk dxi650 speakers. My main reason for getting these was because when I installed my door speakers it was snowing out and I noticed water dripping directly onto the speakers. So, I rigged a thick plastic sheet into the speaker hole on both sides, placing the speaker and wires in the created cavity and leaving enough plastic on the edges so when I bolted the bracket back on it would create a seal so no water could get in. This did work but, my speakers couldnt breath. Now these arent very bass heavy speakers but making it so NO air could flow from behind the speaker made the plastic bag cave I made for the wires/speakers breath inward and rattle like crazy causing a super annoying sound on top of my already rattling door panels. So I needed a fix and thats what these baffles are for. I did have to modify my original brackets though. The brackets come with a sort of half cone protruding from behind creating a half cavity, for depth and to protect the speaker (but this still failed with rain water depending on how your speaker actually fit in the brackets with its terminals). I cut off the half sphere lumps to create a smooth flat bracket, inserted the new foam cave (so it goes foam brackets from speakers->plastic bracket screw into door panel->baffle->speaker) and positioned the speaker so the terminals are on the bottom. Cut out an area I felt wouldnt allow water but air could get in, and mounted. This did meet my requirements for water proofing, rattle reducing and plastic eliminating but there are drawbacks after experiencing the setup for a few weeks. First, while the bass is reduced this makes the rear speaker bass seem much more potentb thus throwing off the entire balance of rear/front. Some music is ok and there isnt much difference but a lot of times Id say my front speakers sound 60% the volume of my rears (adding +1 to my front with the front/rear balance of the head unit causes such a great difference in power output it makes the rears sound invisible). The baffles will also redirect the sound output to directly forward. To alleviate this cut more foam off the back of the baffle. I couldnt because of the rain issue which in this case causes the music to shoot at my feet instead of giving the "atmospheric" effect. Its not nearly as bad if you drive alone but when someone is in my passenger seat I can barely hear the front speakers unless the song is heavy on treble. All in all a good product for what I needed without fixing my window seals, buying dynomat and spending tons more money. My fix for the difference in sound dynamics was to buy an app called TuneShell for my iPod touch so I could better tune the music equalizer and take away the bass more subtly and raise the treble than what my head unit allowed. If your car has leaky windows, if you need to direct the sound output directly forward, cut out bass for an amp, etc, buy these. They are cheap and will hold you over until you can plan accordingly.

## Frequently Bought Together

- Design Engineering DEI 050331 Boom Mat Speaker Baffles, 6.5" Round Slim (Pack of 2)
- 4PCS Speaker Foam Enhancer,6.5" Speaker Foam Rings for Enhancing Stereo Sound in Car Speakers,Universal Self-Adhesive Speaker Gasket Car Accessories for Car,Truck,SUV

---

## 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/4879476-dei-050331-boom-mat-speaker-baffles-6-5-round-slim](https://www.desertcart.us/products/4879476-dei-050331-boom-mat-speaker-baffles-6-5-round-slim)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-29*