Skip Navigation

Boom Mat 4" Speaker Baffles

Protect your speakers
Regular and slim-line sizes (Slim-line: 2-1/4" depth)

10 Reviews

California customers: Please click here for your Proposition 65 warning.

Item # 696B050311

In Stock

Add to Cart

Earn up to 8 Rewards points

Ask an expert

Our VA-based experts can help.




Our take on the Boom Mat 4" Speaker Baffles

Boom Mat baffles protect your car's new speakers from moisture and dirt. Mounted behind the speaker, the baffle forms a mounting seal that also improves sound clarity by reducing panel vibration that could transfer to the speaker.

Boom Mat baffles protect your car's new speakers from moisture and dirt. Mounted behind the speaker, the baffle forms a mounting seal that also improves sound clarity by reducing panel vibration that could transfer to the speaker.

These baffles will protect your speakers. In many applications we recommend that you cut a hole in the bottom of the baffle, or remove the entire bottom of the baffle, to maintain good bass response while still protecting your speaker from dirt and water damage. Call one of our Advisors if you have questions — they'll be happy to share their expertise with you.

Priced per pair

Product Highlights:

What's in the Box:

  • Two acoustic foam slim baffles for 4" speakers

Great for the price. Sound very nice for a little 4 inch speaker.

Romeo, Orange Park, FL


Boom Mat 4" Speaker Baffles Reviews

Average Customer Review(s):

(10 Reviews)

Boom Mat 4" Speaker Baffles

Crutchfield customer from Spokane, WA on 4/26/2018

Crutchfield Customer Review (What's this?)

Fits great



Boom Mat 4" Speaker Baffles

Crutchfield customer from Daggett, CA on 10/28/2017

Crutchfield Customer Review (What's this?)

Perfect fit.



sounds great for the price and size

Romeo from Orange Park, FL on 7/10/2017

Crutchfield Customer Review (What's this?)

Great for the price. Sound very nice for a little 4 inch speaker.

Pros: decent sound, cheap price

Cons: little to no bass (again, 4 inch speaker under 50 bucks)

4 inch slim Boom Mat Baffle

Jay from Ransomville, NY on 2/24/2017

Crutchfield Customer Review (What's this?)

Fit perfectly and the shipping was amazing. The baffles arrive two more mornings strrn NJ Jun

Pros: Easy use and make rhe sound so much better as well as protect the speaker. The foam acted as a spacer as well allowing me to to install the weaker either hitting anything.

Cons: If you didn't need the clearance the baffle would act as a spacer.

Worth the extra $

Stan from Nanticoke, PA on 2/5/2016

Crutchfield Customer Review (What's this?)

Installed, jeep wrangler dash corners. Read the reviews, and glad I made the purchase. For a couple dollars, they absolutely make a difference. This is my 2nd personal jeep installation, I didn't install any in my first. Hence, I can verify there is a difference in sound quality

Pros: Improved sound, minimal investment

Cons: Wish I installed in my previous jeep

Boom Mat 4" Speaker Baffles

Crutchfield customer from California on 3/16/2015

Crutchfield Customer Review (What's this?)

Unless you have a REALLY old model car or truck you don't need these.



Easy to use

Vance from California on 12/16/2014

Crutchfield Customer Review (What's this?)

They are going into a 1990 VW Westfalia. There mounted in the front doors (slim version). Helped protect against moisture in the doors and enhanced the sound quality.



Great product

John from Aurora Colorado on 12/4/2013

Crutchfield Customer Review (What's this?)

I've never installed baffles behind my speakers before but the shock to finally hear music so clearly was astounding. They were so easy to install in my 1993 Toyota Camry front doors. They block road noise at bay so you can hear only your music plus they keep dirt and dust away from the back side of the speakers. I highly recommend them

Pros: Fantastic product

Cons: None

Don't bother

Jim from Soldotna, AK on 4/14/2011

Crutchfield Customer Review (What's this?)

These were WAY too big for the opening. Even with trimming they wouldn't work. It was like a little kid wearing dad's clothes. I finally just tossed them, as the return shipping would have been more than they cost.



Sizing a bit off

Jim from Orcas Island, WA on 12/12/2008

Crutchfield Customer Review (What's this?)

I bought these to go with the Pioneer TS-G1042R 4" speakers that I ordered. Boom Mat must be using a different measurement standard than Pioneer. I cut them down to match the speakers per the instructions, but they're just a smidgen to large for the speaker. As a result the don't really seal up as well as the product descriptions indicate. If they were about 1/4" - 3/8" smaller in the speaker cone size they would be a perfect fit, but as is, they are 4" which is really too large for 4" speakers. It doesn't sound logical, but once you've tried to install them you'll know what I mean.




Hands-on research

Product Research


Overview: These acoustic baffles are designed to be placed behind car speakers to protect the speaker from moisture and dirt which can damage speaker components. Along with providing a sealed chamber, they also form a mounting seal between the speaker and the mounting surface to eliminate panel to frame resonance. Baffles will improve door acoustics by reducing road noise and vibrations transferred to the back of the speaker cone. The baffles are pliable and can be compressed to fit most applications.


  • Speaker Size: 4"
  • Minimum Cutout: 4.9375" x 5"
  • Maximum Depth: 2.5625"
  • Thickness: 0.25"
  • Flange Size: 5.9375" x 6.125"

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

These speaker baffles are good for in-door installations as protection from water and dirt that can enter through the window gasketing at the top of the door. Crutchfield recommends cutting a hole in the bottom of the baffle (when viewed from the front installed direction) so as to still provide for a volume of air suspension to work with the woofer for bass response. This is in keeping with audio box design facts. [ David  Jan 05, 2019 ]
Recommendee [ Acie  Jan 02, 2019 ]
My original speakers failed due to exposure to water, Thes Boom Mat speaker baffles will extend the life of the replacement speakers I am purchasing from Crutchfield. [ Matthew  Oct 08, 2017 ]
My doors have gaps that let moisture in [ Alexander  Jun 30, 2017 ]
I wanted Better Sound In my car & I wanted to be cool for once, & be the guy with the cool sounding system. [ Alejandro  Dec 30, 2016 ]
Your website recommended them. [ Greg  Sep 14, 2018 ]
I wanted these for my Jeep speakers for protection form the elements. [ Paul  Jul 22, 2018 ]
I just want to be sure to keep moisture and dirt away from the speakers and the speaker baffles are supposed to help with the sound according to my stereo geek friends. [ L  Jul 13, 2018 ]
To protect my door speakers [ H  Jun 08, 2018 ]
space is limited and these are a little shallower than the xtc [ L  Jun 01, 2018 ]
Tweeters [ Mike  May 09, 2018 ]
Because the JL audio websites or phone number is not working [ Jarrett  Apr 13, 2018 ]
try to stop the vibration in the dashboard push more sound out of the face Grill? [ dewayne  Feb 26, 2018 ]
To protect the rear of the speaker and isolate it from the body panels that I do not want to vibrate. Never used them before, we shall see how they perform. [ Brian Wesley  Jan 13, 2018 ]
Insulation against headliner and roof [ Ryan  Nov 23, 2017 ]
makes it easy to make a tight compartment for speaker to sound good. [ Sean  Jun 05, 2017 ]
I want to get the most sound out of my new speakers. Jeeps are not noted for having the best sound. [ Anthony  Apr 07, 2017 ]
For better sound clarity [ Russell  Feb 19, 2017 ]
I wanted to eliminate panel vibration from the rear sheet metal speaker location. [ MARVIN  Jan 30, 2017 ]
using on a motorcycle faring, Pushes the sound forward instead of echoing in the faring. recommended by another rider. [ Patrick  Jul 02, 2016 ]
Had problems with unprotected speakers in past. This product protected my new speakers. [ Eugene  Mar 18, 2016 ]

Searches related to the Boom Mat 4" Speaker Baffles Protect your speakers
Regular and slim-line sizes