Universal box template

Single 8-inch Vented / Bass-Reflex Subwoofer Box - 15 L / 38 Hz

Description

This vented (bass-reflex) enclosure is designed for a single 8-inch round subwoofer, providing a 15 L chamber tuned to 38 Hz. It features a simple rectangle shape constructed from 16 mm (5/8 inch) material with external dimensions of 528 × 264 × 227 mm (20.73 × 10.4 × 8.94 in). A double-thickness front baffle increases cabinet rigidity and reduces front-panel flex, making the box suitable for high-output subwoofer systems. The design utilizes one L-shaped slot port with an area suitable for high-output drivers with increased cone excursion and airflow demand. This general-purpose home subwoofer enclosure for music and stereo systems balances bass extension, cabinet size, output, and low distortion while also being ideal for everyday car-audio use, accounting for limited trunk space, installation constraints, and balanced sound.

Volume & tuning

15 l
Internal volume
38 Hz
Tuning frequency

Box properties

Shape
Simple Rectangle
Material thickness (mm)
16
Material thickness (inch)
5/8
Box dimensions (mm)
529 × 264 × 227
Box dimensions (inch)
20.73 × 10.4 × 8.94
Max RMS speaker power up to
4500 W
Speaker mounting panel layers
Double
Number of bands
1

Enclosure & speaker

Enclosure
Vented
Speaker configuration
Single
Number of speakers
1
Speaker size
8"

Port

Port type
Rectangular
Port count
1
Port area (sq.mm)
5189
Appearances
View all
Similar boxes for 8" speakers