Universal box template
Automotive 12-inch single rectangular ported subwoofer box - 40 L / 35 Hz - 562 × 357 × 285 mm
16
Car sub
Right-side port
Description
Designed for a single 12-inch rectangular subwoofer, this Vented / Bass-Reflex enclosure features a 40 L chamber tuned to 35 Hz. The cabinet has a simple rectangular shape and is built from 16 mm (5/8 inch) material with external dimensions of 562 × 357 × 285 mm (22.11 × 14.09 × 11.24 in). Optimized for everyday car-audio use, it balances limited trunk space and installation constraints with high-quality sound. One L-shaped slot port is positioned on the right side for consistent visual alignment and installation, providing a port area suitable for drivers with moderate cone excursion and airflow demand.
Volume & tuning
40 l
Internal volume
35 Hz
Tuning frequency
Box properties
Shape
Simple Rectangle
Material thickness (mm)
16
Material thickness (inch)
5/8
Box dimensions (mm)
563 × 358 × 286
Box dimensions (inch)
22.11 × 14.09 × 11.24
Max RMS speaker power up to
290 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
