Nippon Empty Ported Cylinder/Tube Enclosure for 6-1/2″ Woofer

16.25&quote; L X 9.5&quote;H (INCLUDING VENT)
AIR SPACE = .38 CU. FT.
Outside diameter is 7.5&quote;
Inside diameter is 5.75&quote;

Grade A – 5/8&quote; MDF Construction
Charcoal Carpet Covering
Terminal Cup Connectors
Ported for Greater Bass Response

The port that runs along the top of the cylinder is square shaped.