Universal box template
Single 8-inch Vented / Bass-Reflex Subwoofer Box - 20 L / 38 Hz
Description
This vented (bass-reflex) enclosure is specifically designed for a single 8-inch round subwoofer. Built from 16 mm (5/8 inch) material in a simple rectangle shape, it features external dimensions of 491 × 269 × 229 mm (19.3 × 10.62 × 9.03 in). The design includes a 20 L chamber precisely tuned to 38 Hz using one L-shaped slot port. Its port area is optimized for drivers with moderate cone excursion and airflow demands. Whether used in everyday car-audio systems to save trunk space or as a general-purpose home subwoofer for music and stereo setups, this box provides a balanced blend of bass extension, compact size, output, and low distortion.
Volume & tuning
20 l
Internal volume
38 Hz
Tuning frequency
Box properties
Shape
Simple Rectangle
Material thickness (mm)
16
Material thickness (inch)
5/8
Box dimensions (mm)
492 × 270 × 229
Box dimensions (inch)
19.3 × 10.62 × 9.03
Max RMS speaker power up to
1500 W
Speaker mounting panel layers
Single
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)
2919
Appearances
View all
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