Universal box template

Single 12-inch Rectangular Bass-Reflex Subwoofer Box - 40 L / 35 Hz - 659 × 409 × 305 mm

  1. Ready boxes
  2. Single 12-inch Rectangular Bass-Reflex Subwoofer Box - 40 L / 35 Hz - 659 × 409 × 305 mm
Use in calculator
Single 12-inch Rectangular Bass-Reflex Subwoofer Box, 40 L chamber tuned to 35 Hz with one L-shaped slot port, solid exterior, 659 × 409 × 305 mm (25.9 × 16.12 × 12.02 in).
Single 12-inch Rectangular Bass-Reflex Subwoofer Box, 40 L chamber tuned to 35 Hz with one L-shaped slot port, solid exterior, 659 × 409 × 305 mm (25.9 × 16.12 × 12.02 in).
Single 12-inch Rectangular Bass-Reflex Subwoofer Box, 40 L chamber tuned to 35 Hz with one L-shaped slot port, solid exterior, 659 × 409 × 305 mm (25.9 × 16.12 × 12.02 in).
Single 12-inch Rectangular Bass-Reflex Subwoofer Box, 40 L chamber tuned to 35 Hz with one L-shaped slot port, solid exterior, 659 × 409 × 305 mm (25.9 × 16.12 × 12.02 in).
Single 12-inch Rectangular Bass-Reflex Subwoofer Box, 40 L chamber tuned to 35 Hz with one L-shaped slot port, disassembled parts, 659 × 409 × 305 mm (25.9 × 16.12 × 12.02 in).
Single 12-inch Rectangular Bass-Reflex Subwoofer Box, 40 L chamber tuned to 35 Hz with one L-shaped slot port, solid exterior, 659 × 409 × 305 mm (25.9 × 16.12 × 12.02 in).
16 Double Car sub Right-side port

Description

This vented (bass-reflex) enclosure is expertly designed for a single 12-inch rectangular subwoofer, featuring a 40 L chamber tuned to 35 Hz. Built with a simple rectangle shape from 16 mm (5/8 inch) material, it measures 659 × 409 × 305 mm (25.9 × 16.12 × 12.02 in). The design includes a double-thickness front baffle to increase cabinet rigidity and reduce flex, making it ideal for high-output systems. For optimal performance, it utilizes one L-shaped slot port positioned on the right side for consistent visual alignment. This layout provides a port area suitable for high-output, large-excursion drivers and SPL-oriented use with high airflow demands. Designed for everyday car-audio use, the cabinet balances sound quality with limited trunk space and installation constraints.

Volume & tuning

40 l
Internal volume
35 Hz
Tuning frequency

Box properties

Shape
Simple Rectangle
Material thickness (mm)
16
Material thickness (inch)
5/8
Box dimensions (mm)
660 × 409 × 305
Box dimensions (inch)
25.9 × 16.12 × 12.02
Max RMS speaker power up to
700 W
Speaker mounting panel layers
Double
Number of bands
1

Enclosure & speaker

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

Port

Port type
Rectangular
Port count
1
Port area (sq.mm)
17000
Appearances
View all
Universal Vented / Bass-Reflex Subwoofer Box for 8-33-inch Drivers in Light Oak, featuring a light oak front panel and solid exterior.

Light Oak

Loudspeaker enclosure featuring a light oak front panel.

Universal Vented / Bass-Reflex Subwoofer Box for 8-33-inch Drivers in Raw Cherry, featuring a raw, unfinished cherry wood front panel and 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, showing 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 12 mm Front Panel Chamfer, showing solid exterior.

12 mm Front Panel Chamfer

The front panel features a 12 mm chamfered edge.

Similar boxes for 12" speakers
Single 12-inch Rectangular Bass-Reflex Subwoofer Box with Right Port - 35 L / 35 Hz - 576 × 368 × 289 mm
16

Single 12-inch Rectangular Bass-Reflex Subwoofer Box with Right Port - 35 L / 35 Hz - 576 × 368 × 289 mm

35l · 35 Hz

576 × 368 × 290 mm

Single 12-inch Rectangular Vented Subwoofer Box - 35 L / 35 Hz - 612 × 368 × 289 mm
16

Single 12-inch Rectangular Vented Subwoofer Box - 35 L / 35 Hz - 612 × 368 × 289 mm

35l · 35 Hz

612 × 368 × 290 mm

Automotive Single 12-inch Rectangular Bass-Reflex Subwoofer Box - 35 L / 35 Hz - 596 × 369 × 290 mm
18

Automotive Single 12-inch Rectangular Bass-Reflex Subwoofer Box - 35 L / 35 Hz - 596 × 369 × 290 mm

35l · 35 Hz

597 × 370 × 290 mm

Automotive 12-inch single rectangular ported subwoofer box - 40 L / 35 Hz - 562 × 357 × 285 mm
16

Automotive 12-inch single rectangular ported subwoofer box - 40 L / 35 Hz - 562 × 357 × 285 mm

40l · 35 Hz

563 × 358 × 286 mm

12-inch Rectangular Bass-Reflex Car Subwoofer Box - 40 L / 35 Hz - 588 × 378 × 293 mm
16

12-inch Rectangular Bass-Reflex Car Subwoofer Box - 40 L / 35 Hz - 588 × 378 × 293 mm

40l · 35 Hz

588 × 379 × 294 mm

Single 12-inch Right-Ported Rectangular Subwoofer Box - 40 L / 35 Hz - 622 × 409 × 305 mm
16

Single 12-inch Right-Ported Rectangular Subwoofer Box - 40 L / 35 Hz - 622 × 409 × 305 mm

40l · 35 Hz

623 × 409 × 305 mm

Single 12-inch Rectangular Bass-Reflex Automotive Subwoofer Box - 40 L / 35 Hz - 643 × 410 × 305 mm
18

Single 12-inch Rectangular Bass-Reflex Automotive Subwoofer Box - 40 L / 35 Hz - 643 × 410 × 305 mm

40l · 35 Hz

643 × 411 × 306 mm

Automotive 12-inch Rectangular Bass-Reflex Subwoofer Box - 45 L / 32 Hz - 584 × 374 × 292 mm
16

Automotive 12-inch Rectangular Bass-Reflex Subwoofer Box - 45 L / 32 Hz - 584 × 374 × 292 mm

45l · 32 Hz

585 × 375 × 292 mm

Right-Ported Single 12-inch Vented Rectangular Subwoofer Box - 45 L / 32 Hz - 610 × 395 × 300 mm
16

Right-Ported Single 12-inch Vented Rectangular Subwoofer Box - 45 L / 32 Hz - 610 × 395 × 300 mm

45l · 32 Hz

611 × 396 × 300 mm

Single 12-inch Rectangular Vented Car Subwoofer Box - 45 L / 32 Hz - 646 × 426 × 311 mm
16

Single 12-inch Rectangular Vented Car Subwoofer Box - 45 L / 32 Hz - 646 × 426 × 311 mm

45l · 32 Hz

647 × 426 × 312 mm

Single 12-inch Rectangular Vented Subwoofer Box for Vehicles - 45 L / 32 Hz - 683 × 426 × 311 mm
16

Single 12-inch Rectangular Vented Subwoofer Box for Vehicles - 45 L / 32 Hz - 683 × 426 × 311 mm

45l · 32 Hz

684 × 426 × 312 mm

Single 12-inch rectangular ported subwoofer box with right-side port - 45 L / 32 Hz - 667 × 427 × 312 mm
18

Single 12-inch rectangular ported subwoofer box with right-side port - 45 L / 32 Hz - 667 × 427 × 312 mm

45l · 32 Hz

668 × 428 × 312 mm