Audiopipe RING10R Nippon 10 MDF Speaker Ring Spacer *Sold As Pair*

These rings are what I needed. They are made of MDF, which is basically glorified cardboard. So if you are going to install them I would recommend using glue, skinny screws or large nails. Using glue is underrated it can be as strong as nails. That being said the thickness of the rings is 3/4 so if you're looking for a flush mount you have to know your specs otherwise you're going to have a lip. Long story short they seem robust and durable I am doing a custom vintage subwoofer box. I may do another review later. I can't wait to listen to instrumental music by Andirhi with this new setup.

I needed to offset my subwoofers 3/4” and this spacer worked perfectly.

Making a fiberglass enclosure? This will save you the headache of not making a perfect round mdf ring. This is good quality 3/4 mdf. Rings fit nice and tight on my 10" Alpine Type R shallow sub. Would definitely recommend.

I was able to raise speaker for internal clearances

I'm building some fiberglass doors for my car and I needed an MDF wood speaker ring. This is exactly what I needed and will work perfectly. I would definitely buy it again.

Screw hole diameter: 10", Outside diameter: 11", Inside diameter: 9". Measure the distance between top & bottom screw holes on your woofer to make sure this will fit your application.

These trim rigs were just what I needed to fix the oversized holes in my old Qlogic box. The fit was tight and the MDF was of good quality.

Product was of great quality and workmanship. Built and finished my box and ordered my subs about a month later. My problem was they do not fit a jl audio 10tw3. So have your subs before you complete your box