This is a basic custom ported enclosure. It will be the vented "low hz" enclosure shown in the picture i have attached. Built for the 12" Subwoofer at 3.125 Cubic Feet tuned to 31hz. Because of the size of this enclosure I also place a few small braces to help against any flexing that may occur. 

The enclosure is made of Baltic Birch. You can choose carpet or no carpet. It will come with a speaker terminal plate and be prewired with 12g OFC speaker wire.

Standard cutout for the subwoofer is 11.125", if you need a different cutout diameter then please specifiy when ordering. If you do not know your cutout diameter then please feel free to just give me your model number of the speaker and I can look that information up. 

It will be built to the dimensions shown at this website: 
https://subbox.pro/en/design/?bt=2&bw=800.1&bh=419.1&bv=88.5&mt=19&fp=1&sq=1&ss=12&cd=282.6&md=158.8&sv=1.7&so=-152.4&sd=20&sb=&sn=&pt=4&pq=1&rf=31&pd=175.56&pw=6.4&pa=241.95&pp=0

This enclosure will be made to order, so please allow time from placing order for the enclosure to be ready. This enclosure may be shipped for an added cost, or you can pick it up locally in Longview, WA