Universal box template
Rectangular Ported 12-inch Dual-Driver In-Vehicle Subwoofer Box - 70L / 35Hz - 881 × 370 × 370 mm
Description
This Vented / Bass-Reflex enclosure is specifically designed for 2-driver 12-inch rectangular subwoofers, featuring a 70 L chamber professionally tuned to 35 Hz. Built from 18 mm (3/4 inch) material with a simple rectangle shape, the cabinet measures 881 × 370 × 370 mm (35.34 × 14.58 × 14.58 in). The design includes a double-thickness front baffle to increase rigidity and reduce panel flex, making it ideal for high-output systems. It utilizes one L-shaped slot port with an area optimized for large-excursion drivers and high airflow demand in SPL applications. This versatile box is suitable for everyday car audio use with limited trunk space or as a general-purpose home subwoofer that balances bass extension, size, and low distortion.
Volume & tuning
70 l
Internal volume
35 Hz
Tuning frequency
Box properties
Shape
Simple Rectangle
Material thickness (mm)
18
Material thickness (inch)
3/4
Box dimensions (mm)
882 × 370 × 370
Box dimensions (inch)
35.34 × 14.58 × 14.58
Max RMS speaker power up to
190 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)
23349
