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RDBS 6' 6.5' 6.75' Car Speaker Foam Rings Universal Self Adhesive Speaker Fast Rings Sponge Bass Blocker Kit Waterproof High Rebound EVA Foam Speaker Enhancer Baffle

Free shipping on orders over $29.99

$23.69

$ 12 .99 $12.99

In Stock

1.Size:Three Ring


About this item

  • More choices: three flexible combinations to meet your needs in different sizes
  • High quality: made of high-density and high-strength eva, which is more expensive and eco-friendly than pvc. It's the perfect material for fast foam because it's completely waterproof and will not mold
  • Function: the circular pad goes behind the speaker to absorb unwanted reflections on the hard surfaces of the door. The fast ring is a dedicated gasket for the speaker mounting to the baffle plate surface. It can melody soundproof bass seal and greatly enhance the mid-bass
  • Plug and paly: suitable for 6 - 6.75 inch speakers. Easy and quick installation with self-adhesive
  • Awesome midbass: when fast rings are properly installed, the speaker will float in the door so that it can vibrate perfectly.The front fast ring will greatly enhance the mid-bass to get the qualitative leap



Product Description

6.5 fast ring

  • Speaker Foam Baffles by RDBS solve the problem of speakers openings acoustically coupling, which made of closed cell foam board to further enhance audio effects. The fast ring is a laser cut foam product with peel away adhesive on the back, make it easier to install.
  • Our fast ring separate into 4 pieces. The first is a special gasket for fixing the speaker on the surface of the baffle. The second and third rings surround the edge behind the speaker to absorb hard surfaces (such as the inside of a car door) and unnecessary reflections. The fourth ring surrounds the outer edge. By using multiple rings, the kit improves the audio projection to the cabin, reduces unnecessary back reflections and the sound. In addition, the design of multiple ring sizes allows you to provide a variety of options for the size of your speakers!
  • No matter what level of system you have, whether it be something with a high end DSP, or just a daily driver, these make a large improvement in sound. Rock music comes alive and clean guitars are even clearer.
  • The package includes 4 pack speaker foam rings which improve the sound quality for the 4 car doors. After installation, you can enjoy 360 degree surround mid-bass in the car.
6 inch fast ring

FAST RING
Multiple Size Options For You

Speaker baffles kit with 3 rings, suitable for multiple sizes (6 inch, 6.5 inch, 6.75 inch) of speakers can be selected. If you want to improve the sound effect please place an order to buy!!

  • 6 inch
  • 6.5 inch
  • 6.75 inch

Why choose our speaker fast rings?

  • Speakers foam baffles create a good seal and prevent the sound from being lost inside the door.
  • The back punch gets canceled out and all the sound is funneled into your car.
  • The kit improves the projection of the audio into the car cabin and reduces unwanted rear reflections that can degrade the sound.
  • Prevent sound quality from spreading
  • Improve speaker sound quality
  • Absorb the door echo
  • Enhanced acoustics

high resilience

HIGH QUALITY

Our speaker fast ring made of ENA sponge with high resilience, can not deformation when squeezed.

waterproof

WATERPROOF

Ordinary sponges absorb water in rainy days or washing your car, resulting in poor sound quality, damp and moldy. Our fast ring eliminates such problems for you.

3M glue

SELF ADHESIVE

The back of our fast ring comes with 3M glue, which is convenient to use. Please confirm the installation position before installation to avoid multiple tearing that affects the paste effect.

Improve the quality of life

Michael pogue
2025-08-21 15:52:26
My purchase blew me away when i installed them to my speakers. The sound was very crisp and distinct. The bass was alot more forthcoming and solid. best purchase ever made!.
K. Trout
2025-08-13 15:37:28
They work Great. Adhesion is excellent. I’m not worried about them coming free at all. I have some 7” Ken’s woods up front, so the interior diameter of the biggest ring was a little bit small. I was able to fix this by essentially cutting the biggest ring in half, all the way around the circle, which turned one ring into two. One with a larger inner ring diameter which worked perfectly for the 7” kenwood. The smaller ring with interior diameter of 6.5” worked perfectly for my 6.5’s in the rear. So I basically turned 4 rings into 8. It’s an excellent value. They are a little too thick to put my door panel back on so I am going to have to trim them down a little bit but that’s not a problem either. I’m very happy with the purchase. Highly recommended.
christina phillips
2025-08-12 10:02:19
Rubber quality is nice. Easy to use, sticky.Center circle was much smaller than I have used in the past and not sure big enough to do much. For a 6.5 it was too small.Would have been better with 1 x 6.5 ring with large center circle.I knew these were a bit thin (not a lot of height), so I cannot complain. That said, I will look for something with more depth down the road for behind my speaker (i used them in back, for front they would be fine--maybe too thick depending on space between door card and speaker. But, easy to trim).
Ash B.
2025-07-30 19:21:18
For people out there like me who like to do nice things to cars on a budget these are perfect for you. Whenever you are upgrading your speakers in your car and don't want to spend money on sound deadening you should always opt to buy these speaker rings. These definitely help in directing the audio into the cabin as well as reducing the rattle in your car whenever the bass hits. The big solid round piece gets mounted to the inside of your car door panel to absorb the unwanted resonance of the speaker to be eliminated and the other rings to be used on top of the speaker directing the audio in the cabin. There are many videos on youtube showing these and those guys do a better job explaining than I do. Overall, I always use these everytime I upgrade my audio in my car. 5/5 stars
Derek C.
2025-07-29 11:47:54
Be patient putting them around your 6.5" kids. If you work the m around the speaker they will stretch and keep their form. I did not need to use the adhesive on the large ring because it for so tight. The small ring for the back of the speaker works great just test fit it before to make sure the window will clear it. Peel of a small flap on each side stick it to the back of your speaker install and run the window up and down. If it does not hit then peel of the entire label and stick and re-install speaker.
Customer
2025-06-21 13:06:49
I was very surprised with the quality. I wish they would had for 7" diameter as I was not able to fit them on my factory speakers.
Darby
2025-06-20 12:16:36
The largest ring inner diameter is too small for a 6.75” woofer. The surrounds on even a 6.5” woofer would also rub on the inside of the largest ring. Easy fix to just cut/shave some foam but still not even close to fitting a 6.75”.
Matt and Sarah
2025-04-25 11:54:43
Easy to use. Great adhesive. Fit perfectly on my 6.75" speakers installed on my 2018 F150.
JBH
2025-01-28 13:53:43
Creates a nice seal for your speakers, sticks well
ML
2025-01-23 13:51:32
This foam helped improve the bass response of my car's factory speakers. The outer ring fit well around my 6.5" speaker. In my car door there is a central metal cylinder behind the woofer so I had to cut the circular foam piece in half and install above and below to absorb the back-pressure behind the woofer.