Universal box template

In-Vehicle 2-Driver 12-inch Rectangular Bass-Reflex Subwoofer Box - 80 L / 35 Hz - 993 × 399 × 399 mm

Description

This Vented / Bass-Reflex enclosure is designed for a 2-driver 12-inch rectangular subwoofer, balancing bass extension, cabinet size, output, and low distortion for general-purpose home music and stereo systems. Built from 18 mm (3/4 inch) material in a Simple Rectangle shape, the cabinet features external dimensions of 993 × 399 × 399 mm (39.74 × 15.73 × 15.73 in). A double-thickness front baffle increases rigidity and reduces flex, making it ideal for high-output systems. The 80 L chamber is tuned to 35 Hz using one L-shaped slot port with an area optimized for high-airflow SPL use and large-excursion drivers. This design also suits everyday car-audio use by accounting for limited trunk space and installation constraints to deliver a balanced sound.

Volume & tuning

80 l
Internal volume
35 Hz
Tuning frequency

Box properties

Shape
Simple Rectangle
Material thickness (mm)
18
Material thickness (inch)
3/4
Box dimensions (mm)
993 × 399 × 399
Box dimensions (inch)
39.74 × 15.73 × 15.73
Max RMS speaker power up to
140 W
Speaker mounting panel layers
Double
Number of bands
1

Enclosure & speaker

Enclosure
Vented
Speaker configuration
Multi
Number of speakers
2
Speaker size
12" Rectangle

Port

Port type
Rectangular
Port count
1
Port area (sq.mm)
36483
Appearances
View all
Similar boxes for 12" speakers