Universal box template

Single 12-inch Rectangular Vented / Bass-Reflex Subwoofer Box - 30 L / 35 Hz

Description

This Vented / Bass-Reflex enclosure is designed for a single 12-inch rectangular subwoofer and features a 30 L chamber tuned to 35 Hz. Built from 16 mm (5/8 inch) material in a simple rectangle shape, the cabinet measures 570 × 327 × 252 mm (22.4 × 12.88 × 9.95 in). It serves as a general-purpose home subwoofer enclosure for music and stereo systems, balancing bass extension, cabinet size, output, and low distortion. For car-audio use, it accounts for limited trunk space, installation constraints, and balanced sound. The design incorporates one L-shaped slot port with a port area suitable for drivers with moderate cone excursion and airflow demand.

Volume & tuning

30 l
Internal volume
35 Hz
Tuning frequency

Box properties

Shape
Simple Rectangle
Material thickness (mm)
16
Material thickness (inch)
5/8
Box dimensions (mm)
570 × 327 × 253
Box dimensions (inch)
22.4 × 12.88 × 9.95
Max RMS speaker power up to
250 W
Speaker mounting panel layers
Single
Number of bands
1

Enclosure & speaker

Enclosure
Vented
Speaker configuration
Single
Number of speakers
1
Speaker size
12" Rectangle

Port

Port type
Rectangular
Port count
1
Port area (sq.mm)
6567
Appearances
View all
Similar boxes for 12" speakers