AtrendUniversal MDF Constructed Spacer for 10 Inch Speaker or Sub - Adds 3/4" To Depth - Premium Subwoofer Spacer Improves Audio Quality, Sound & Bass - Multiple Usage - Charcoal,Black

I purchased a speaker box that had an incorrect mounting depth description and these were exactly what I needed to make it work. So glad I found these. Very good quality highly recommend to help you subs fit.

These worked perfectly for my skar lx-8's to fit into the two enclosures I have. Great product for the low price.

did what it was supposed too. made a space for a bigger magnet on my box. worked well had to cut off carpet from inside of ring to make the speaker fit…didn’t cause an issue not complaining about it just saying you might have to also. used a utility knife took about 2 minutes not a big deal. well made ring

Very nice, just enough space without a huge gapHappy with it

i had a subwoofer box that couldn't fit a sub because of the depth, the sub was too big and the box wasn't thick enough so i used this to lift the sub up just enough to make it fit perfectly.