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Single 8-inch Round Bass-Reflex Car Subwoofer Box - 25 L / 35 Hz - 581 × 303 × 273 mm

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Single 8-inch round vented / bass-reflex subwoofer box with 25 L chamber tuned to 35 Hz and one L-shaped slot port, solid exterior, 581 × 303 × 273 mm (23.36 × 11.97 × 10.77 in).
Single 8-inch round vented / bass-reflex subwoofer box with 25 L chamber tuned to 35 Hz and one L-shaped slot port, solid exterior, 581 × 303 × 273 mm (23.36 × 11.97 × 10.77 in).
Single 8-inch round vented / bass-reflex subwoofer box with 25 L chamber tuned to 35 Hz and one L-shaped slot port, solid exterior, 581 × 303 × 273 mm (23.36 × 11.97 × 10.77 in).
Single 8-inch round vented / bass-reflex subwoofer box with 25 L chamber tuned to 35 Hz and one L-shaped slot port, solid exterior, 581 × 303 × 273 mm (23.36 × 11.97 × 10.77 in).
Single 8-inch round vented / bass-reflex subwoofer box with 25 L chamber tuned to 35 Hz and one L-shaped slot port, solid exterior, 581 × 303 × 273 mm (23.36 × 11.97 × 10.77 in).
Single 8-inch round vented / bass-reflex subwoofer box with 25 L chamber tuned to 35 Hz and one L-shaped slot port, disassembled parts showing internal brace, 581 × 303 × 273 mm (23.36 × 11.97 × 10.77 in).

Description

This Vented / Bass-Reflex enclosure is designed for a single 8-inch round subwoofer, featuring a 25 L chamber tuned to 35 Hz. Built from 18 mm (3/4 inch) material in a simple rectangle shape, the cabinet measures 581 × 303 × 273 mm (23.36 × 11.97 × 10.77 in). It includes one internal brace to reinforce the panels and reduce vibration, making it suitable for high-output systems. The design utilizes one L-shaped slot port with a port area optimized for high-output, large-excursion drivers and SPL-oriented use with high airflow demands. This versatile enclosure is ideal for everyday car audio where trunk space and installation constraints are key, as well as for general-purpose home stereo systems, balancing bass extension, cabinet size, output, and low distortion.

Volume & tuning

25 l
Internal volume
35 Hz
Tuning frequency

Box properties

Shape
Simple Rectangle
Material thickness (mm)
18
Material thickness (inch)
3/4
Box dimensions (mm)
582 × 303 × 273
Box dimensions (inch)
23.36 × 11.97 × 10.77
Max RMS speaker power up to
5300 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)
8107
Appearances
View all
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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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