Black Speaker Enhancer System Universal Review

Had to cut over half to fit. The white paper backing is difficult to remove, you should have left a tab. I did the left side first but couldn't tell any difference in sound.

Don't try this, just buy Stinger Roadkill Fast Rings and you're done. It's significantly cheaper material. It's also a two-part speaker app at best. Fast Ringers are 3 piece and much better quality. Other than that, her measurements were accurate. About all I can say

Stick to real Fast Rings. They didn't fit properly, touched on the speaker's surround sound, and didn't improve the sound. The glue also doesn't stick well after the ring is repositioned. I've used quick rings in the past with great results and should have stayed with them rather than forego this fake. I would return them if I could.

They seem very useful but useless. get some soft foam from a reputable brand or switch to silicone models, the foam on them is not good for its intended purpose.

I'm not entirely sure if they've improved the sound quality, but combined with the soundproofing they've reduced the general rattling noise. Can't complain about the price, but I had to cut out a large ring as it was interfering with the surround sound of my 6.5" speakers.

Be patient when putting them on your 6.5 inch kids. When you put them on a speaker, they stretch and keep their shape. I didn't have to use glue on the big ring because it's so tight. Small ring The back of the speaker works great, just try to install it before making sure the window doesn't get dirty. did not hit, then peel and stick the entire sticker and reattach the speaker.