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Design Engineering

Design Engineering DEI 050310 Boom Mat Speaker Baffles, 4" Round (Pack of 2)

  • Based on 6,442 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Jun 23
Order within 10 hours and 18 minutes
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Style: Round


Size: 4"


Features

  • Closed-cell polyethylene enhances frequency response for improved sound clarity
  • 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

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.

Brand: Design Engineering


Speaker Maximum Output Power: 100 Watts


Connectivity Technology: Bluetooth


Audio Output Mode: Default


Mounting Type: Door Mount


Audio Output Mode: Default


Mounting Type: Door Mount


Enclosure Material: Polyethylene


Speaker Type: Coaxial


Additional Features: Water-tight protective shell, Vibration dampening, Speaker performance enhancement


Antenna Location: Damping,Moisturizing


Subwoofer Diameter: 4 Inches


Color: Black


Is Waterproof: FALSE


Control Method: Touch


Speaker Size: 4 Inches


Woofer Diameter: 4 Inches


Tweeter Diameter: 1 Inches


Water Resistance Level: Water Resistant


Specific Uses For Product: Car audio systems, Vehicle sound insulation, Noise reduction, Speaker protection


MP3 player: No


Controller Type: Remote Control


Speaker Maximum Output Power: 100 Watts


Number of Power Levels: 1


Connectivity Technology: Bluetooth


Wireless Technology: Bluetooth


Connectivity Protocol: Bluetooth


Power Source: Corded Electric


Brand: Design Engineering


Model Number: 50310


Model Name: Design Engineering 50310


Built-In Media: Heat Shields


Warranty Description: Manufacturer Warranty


Number of Items: 1


Customer Package Type: Standard Packaging


Series Number: 50310


UPC: 607078503107


Global Trade Identification Number: 07


Manufacturer: DEI


Age Range Description: Adult


Item Type Name: Heat Shields


Number of Audio Channels: 2.0


Unit Count: 2.0 Count


Item Weight: 0.04 Pounds


Compatible Devices: Smartphone, Tablet, MP3 Player


Compatible with Vehicle Type: Car


Audio Driver Type: Dynamic Driver


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Speaker Protection
Style: Round Slim Size: 5.25"
Very good and durable replacement foam speaker baffle/cover. Keeps dust and water from damaging door speakers and contains the sound from dispersing into door cavity. The difference in sound quality was noticeable from not having any baffles before and then after installation.
Reviewed in the United States on May 6, 2026 by eCar
    • Installing speakers this is a must
I’ve seen where people say they loose bass or is doesn’t help, those people are wrong. I’ve used these for a long time. It reduces the “loudspeaker” crackle and helps your speakers by adding back pressure and you ultimately get your Bose audio sound out of your pioneer speakers. Don’t think about it just buy it and thank me later. Plus they protect your speakers from water that gets into your door and ultimately in the speaker and causes them to fall apart, ever notice how certain cars the door speakers sound like they are flying apart when your turn the radio up? Cause they are paper cone speakers with no insulation to prevent them getting wet as they age and the glue pulls from the cone or the cone falls apart. These prevent that and protect your investment. Just make sure you run your wire in from the bottom not the side or top. ... show more
Reviewed in the United States on March 8, 2024 by Jared wright
    • They have their ups and downs
Style: Round Slim Size: 6.5"
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. ... show more
Reviewed in the United States on May 8, 2014 by M.Lee
    • It's baffling
Style: Oval Size: 6" x 9"
Great product. Easy installation and functional as designed.
Reviewed in the United States on May 29, 2026 by Matt Schofield
    • Good insurance
Style: Round Size: 6.5"
These work great..Just make sure you cut out the bottom half so it's ported. It will keep your speakers dry.
Reviewed in the United States on May 29, 2026 by waynar70
    • Not for bass, but could be OK if used with care
Style: Oval Size: 6" x 9"
These definitely are the product pictures and instal well, easy to trim, I can't complain about the product. But I ended up not wanting to use them, either. My car (02 grand cherokee) uses 6x9" speakers in the doors, but I was replacing those with 6.5" component speakers mounted in adapter plates. I assumed that these 6x9" "boom mat" baffles would provide enough airspace behind the 6.5" midwoofers (they're actually pretty impressively cavernous) - but this was apparently not the case. The closed-cell rubbery foam they use seals very well, so I had no "hissing" or "air leaks" and no rattles, but there was just no bass at all. I am not a bass junkie, I leave the bass/treble knobs on my stereo at zero and don't have a subwoofer... but there was simply nothing at the low end. After completely removing these baffles, I had full and natural bass again to the extent my 6.5" speakers could make it. So.. these products would probably be useful if you had a subwoofer and were using 6x9 speakers from, maybe 200hz up. Below that they really restrict the potential of the drivers. I have no complaints about the material quality or fitment, it's good rubber foam and would fit about any 6x9 speaker. ... show more
Reviewed in the United States on April 23, 2012 by Some Human
    • Improve your speaker’s performance
Style: Round Slim Size: 6.5"
If you’re wanting to get better sound from your speakers you need to use these. They help to harness the stray output of your speakers that is lost to open air space behind them.
Reviewed in the United States on May 9, 2026 by John Baker
    • Great Sound Endhancer!!!!
Style: Round Size: 6.5"
Great Fit,really clarified SPEAKER 'Sound and Performance'!!!!!!
Reviewed in the United States on February 7, 2026 by Jimmy Bonz

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