Universal box template
Bottom-Firing 12-inch single round Ported subwoofer box - 65 L / 27 Hz - 485 × 422 × 446 mm

Description
This vented (bass-reflex) enclosure is a general-purpose home subwoofer enclosure for music and stereo systems, balancing bass extension, cabinet size, output, and low distortion. Designed for a single 12-inch round subwoofer, it features a down-firing enclosure with drivers mounted in the bottom panel, where the floor or support surface becomes part of the acoustic loading and shapes the bass dispersion. The 65 L chamber is tuned to 27 Hz and uses one round port with an area suitable for drivers with moderate cone excursion and airflow demand. The cabinet has a Simple Rectangle shape and is built from 16 mm (5/8 inch) material, with external dimensions of 485 × 422 × 446 mm (19.07 × 16.65 × 17.57 in), width × height × depth.