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Single 12-inch Round Vented / Bass-Reflex Subwoofer Box - 40 L / 33 Hz

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Single 12-inch round Vented / Bass-Reflex Subwoofer Box, 40 L chamber tuned to 33 Hz with one L-shaped slot port and one internal brace - solid exterior, 610 × 401 × 360 mm (24.39 × 15.82 × 14.24 in).
Single 12-inch round Vented / Bass-Reflex Subwoofer Box, 40 L chamber tuned to 33 Hz with one L-shaped slot port and one internal brace - solid exterior, 610 × 401 × 360 mm (24.39 × 15.82 × 14.24 in).
Single 12-inch round Vented / Bass-Reflex Subwoofer Box, 40 L chamber tuned to 33 Hz with one L-shaped slot port and one internal brace - solid exterior, 610 × 401 × 360 mm (24.39 × 15.82 × 14.24 in).
Single 12-inch round Vented / Bass-Reflex Subwoofer Box, 40 L chamber tuned to 33 Hz with one L-shaped slot port and one internal brace - solid exterior, 610 × 401 × 360 mm (24.39 × 15.82 × 14.24 in).
Single 12-inch round Vented / Bass-Reflex Subwoofer Box, 40 L chamber tuned to 33 Hz with one L-shaped slot port and one internal brace - solid exterior, 610 × 401 × 360 mm (24.39 × 15.82 × 14.24 in).
Single 12-inch round Vented / Bass-Reflex Subwoofer Box, 40 L chamber tuned to 33 Hz with one L-shaped slot port and one internal brace - disassembled parts, 610 × 401 × 360 mm (24.39 × 15.82 × 14.24 in).

Description

Designed for a single 12-inch round subwoofer, this Vented / Bass-Reflex enclosure features a 40 L chamber professionally tuned to 33 Hz. The cabinet is constructed from 18 mm (3/4 inch) material in a simple rectangle shape with external dimensions of 610 × 401 × 360 mm (24.39 × 15.82 × 14.24 in). It utilizes one L-shaped slot port with a port area optimized for high-output, large-excursion drivers and SPL-oriented applications requiring high airflow. One internal brace reinforces the cabinet to reduce panel vibration, making it ideal for high-power systems. This versatile design serves as a general-purpose home subwoofer enclosure that balances bass extension, size, and low distortion, while also being suitable for everyday car-audio use where trunk space and installation constraints are key considerations.

Volume & tuning

40 l
Internal volume
33 Hz
Tuning frequency

Box properties

Shape
Simple Rectangle
Material thickness (mm)
18
Material thickness (inch)
3/4
Box dimensions (mm)
610 × 401 × 361
Box dimensions (inch)
24.39 × 15.82 × 14.24
Max RMS speaker power up to
1700 W
Speaker mounting panel layers
Single
Number of bands
1

Enclosure & speaker

Enclosure
Vented
Speaker configuration
Single
Number of speakers
1
Speaker size
12"

Port

Port type
Rectangular
Port count
1
Port area (sq.mm)
18241
Appearances
View all
Universal Vented / Bass-Reflex Subwoofer Box for 8-33-inch drivers with a light oak front panel, solid exterior.

Light Oak

Loudspeaker enclosure featuring a light oak front panel.

Universal Vented / Bass-Reflex Subwoofer Box for 8-33-inch drivers with a raw cherry wood front panel, solid exterior.

Raw Cherry

A speaker enclosure featuring a raw, unfinished cherry wood front panel.

Universal Vented / Bass-Reflex Subwoofer Box for 8-33-inch drivers with 12 mm rounded front edges, solid exterior.

12 mm Rounded Front Edges

The front edges of the enclosure feature a 12 mm radius rounding.

Universal Vented / Bass-Reflex Subwoofer Box for 8-33-inch drivers with a 12 mm front panel chamfer, solid exterior.

12 mm Front Panel Chamfer

The front panel features a 12 mm chamfered edge.

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