15" to 12" SPEAKER ADAPTOR SUBWOOFER SUB RING 1/2” - 3/4" - 1” MDF FIBERGLASSING BOX RINGS 4”x6” 5" back height x 20"

5" back height x 20" deep

Airspace: 1 cuft (factory recommendation)

Dimensions can be changed if needed

NO terminal cups

Dimensions for 15" Subs: 44" wide x 16" tall x 22" deep

15" to 12" SPEAKER ADAPTOR SUBWOOFER SUB RING 1/2” - 3/4" - 1” MDF FIBERGLASSING BOX RINGS 4”x6” 5" back height x 20"Hole cutout of 11. 125" Outside diameter 16" Will allow you to install a 12" speaker in a 15" speaker hole Made with 1 2 , 3 4" or 1 MDF Can be used to extend speaker mounting depth Other hole sizes and wood thickness available upon request Can be used for fiberglass projects This listing is for 1 piece Please like us on Facebook: AK Audio Have a custom design idea, we can build it