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Dual 12-inch Vented / Bass-Reflex Subwoofer Box

Description

This Vented / Bass-Reflex enclosure is designed for 2-driver 12-inch round subwoofer systems, featuring a 70 L chamber tuned to 35 Hz. Built from 18 mm (3/4 inch) material in a simple rectangle shape, the external dimensions are 840 × 370 × 370 mm (33.6 × 14.58 × 14.58 in). It serves as a general-purpose home subwoofer enclosure for music and stereo systems, balancing bass extension, cabinet size, output, and low distortion. Additionally, it is designed for everyday car-audio use, taking limited trunk space, installation constraints, and balanced sound into account. The design utilizes one L-shaped slot port with a port area suitable for high-output, large-excursion drivers and SPL-oriented use with high airflow demand.

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)
841 × 370 × 370
Box dimensions (inch)
33.6 × 14.58 × 14.58
Max RMS speaker power up to
65 W
Speaker mounting panel layers
Single
Number of bands
1

Enclosure & speaker

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

Port

Port type
Rectangular
Port count
1
Port area (sq.mm)
23349
Appearances
View all
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