Universal box template
12-inch Rectangular Ported Car Audio Subwoofer Box - 30 L / 35 Hz - 563 × 359 × 286 mm
16
Car sub
Right-side port
Description
This Vented / Bass-Reflex enclosure is specifically designed for a single 12-inch rectangular subwoofer, featuring a 30 L chamber tuned to 35 Hz. Built from 16 mm (5/8 inch) material in a simple rectangle shape, the cabinet measures 563 × 359 × 286 mm (22.13 × 14.14 × 11.26 in). Its layout includes one L-shaped slot port positioned on the right side to ensure consistent visual alignment and ease of installation. Developed for everyday car-audio use, the design balances balanced sound with limited trunk space and installation constraints. The port area is optimized for high-output drivers with significant airflow demand and increased cone excursion.
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)
563 × 359 × 286
Box dimensions (inch)
22.13 × 14.14 × 11.26
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)
11675
