Universal box template

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

  1. Ready boxes
  2. Single 12-inch Vented / Bass-Reflex Subwoofer Enclosure - 40 L / 33 Hz
Use in calculator
PRO

Support on Patreon is required to use this template

To use this template, you must be a paid Patreon supporter.

Support the project on Patreon
Single 12-inch Vented / Bass-Reflex Subwoofer Enclosure, 40 L chamber tuned to 33 Hz with one L-shaped slot port - solid exterior, 582 × 359 × 323 mm (22.88 × 14.14 × 12.73 in).
Single 12-inch Vented / Bass-Reflex Subwoofer Enclosure, 40 L chamber tuned to 33 Hz with one L-shaped slot port - solid exterior, 582 × 359 × 323 mm (22.88 × 14.14 × 12.73 in).
Single 12-inch Vented / Bass-Reflex Subwoofer Enclosure, 40 L chamber tuned to 33 Hz with one L-shaped slot port - solid exterior, 582 × 359 × 323 mm (22.88 × 14.14 × 12.73 in).
Single 12-inch Vented / Bass-Reflex Subwoofer Enclosure, 40 L chamber tuned to 33 Hz with one L-shaped slot port - solid exterior, 582 × 359 × 323 mm (22.88 × 14.14 × 12.73 in).
Single 12-inch Vented / Bass-Reflex Subwoofer Enclosure, 40 L chamber tuned to 33 Hz with one L-shaped slot port - solid exterior, 582 × 359 × 323 mm (22.88 × 14.14 × 12.73 in).
Single 12-inch Vented / Bass-Reflex Subwoofer Enclosure, 40 L chamber tuned to 33 Hz with one L-shaped slot port - disassembled parts, 582 × 359 × 323 mm (22.88 × 14.14 × 12.73 in).

Description

Designed for a single 12-inch round subwoofer, this Vented / Bass-Reflex enclosure features a 40 L chamber tuned to 33 Hz via one L-shaped slot port. Built from 16 mm (5/8 inch) material in a simple rectangle shape, the external dimensions measure 582 × 359 × 323 mm (22.88 × 14.14 × 12.73 in). One internal brace reinforces the cabinet to reduce panel vibration, making it ideal for high-output subwoofer systems. The port area is specifically suited for high-output drivers with increased cone excursion and airflow demand. This design balances bass extension, size, and low distortion, making it perfect for general-purpose home stereo systems or everyday car-audio use where trunk space and balanced sound are key.

Volume & tuning

40 l
Internal volume
33 Hz
Tuning frequency

Box properties

Shape
Simple Rectangle
Material thickness (mm)
16
Material thickness (inch)
5/8
Box dimensions (mm)
582 × 359 × 323
Box dimensions (inch)
22.88 × 14.14 × 12.73
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
12"

Port

Port type
Rectangular
Port count
1
Port area (sq.mm)
11675
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.

Similar boxes for 12" speakers
Single 12-inch Vented / Bass-Reflex Subwoofer Box - 45 L / 32 Hz

Single 12-inch Vented / Bass-Reflex Subwoofer Box - 45 L / 32 Hz

45l · 32 Hz

600 × 407 × 367 mm

Single 12-inch Round Vented / Bass-Reflex Subwoofer Box - 45 L / 32 Hz

Single 12-inch Round Vented / Bass-Reflex Subwoofer Box - 45 L / 32 Hz

45l · 32 Hz

625 × 407 × 367 mm

Single 12-inch Vented / Bass-Reflex Subwoofer Box - 35 L / 35 Hz

Single 12-inch Vented / Bass-Reflex Subwoofer Box - 35 L / 35 Hz

35l · 35 Hz

587 × 388 × 349 mm

Single 12-inch Round Vented / Bass-Reflex Subwoofer Box - 35 L / 35 Hz

Single 12-inch Round Vented / Bass-Reflex Subwoofer Box - 35 L / 35 Hz

35l · 35 Hz

604 × 390 × 351 mm

Single 12-inch Round Vented / Bass-Reflex Subwoofer Box

Single 12-inch Round Vented / Bass-Reflex Subwoofer Box

40l · 35 Hz

590 × 391 × 352 mm

Single 12-inch Round Vented / Bass-Reflex Subwoofer Box - 40 L / 35 Hz

Single 12-inch Round Vented / Bass-Reflex Subwoofer Box - 40 L / 35 Hz

40l · 35 Hz

608 × 393 × 354 mm

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

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

40l · 33 Hz

593 × 399 × 359 mm

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

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

40l · 33 Hz

618 × 399 × 359 mm

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

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

40l · 33 Hz

610 × 401 × 361 mm

Single 12-inch Vented / Bass-Reflex Subwoofer Box - 30 L / 35 Hz

Single 12-inch Vented / Bass-Reflex Subwoofer Box - 30 L / 35 Hz

30l · 35 Hz

570 × 327 × 253 mm

Single 12-inch Vented / Bass-Reflex Subwoofer Box - 30 L / 35 Hz

Single 12-inch Vented / Bass-Reflex Subwoofer Box - 30 L / 35 Hz

30l · 35 Hz

612 × 359 × 265 mm

Single 12-inch Vented / Bass-Reflex Subwoofer Box - 30 L / 35 Hz

Single 12-inch Vented / Bass-Reflex Subwoofer Box - 30 L / 35 Hz

30l · 35 Hz

651 × 359 × 265 mm