Universal box template

Single 8-inch Vented / Bass-Reflex Subwoofer Box - 25 L / 35 Hz

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Description

Designed for a single 8-inch rectangular subwoofer, this Vented / Bass-Reflex enclosure features a 25 L chamber precision-tuned to 35 Hz. The cabinet is constructed from 16 mm (5/8 inch) material in a Simple Rectangle shape with external dimensions of 552 × 284 × 255 mm (21.7 × 11.19 × 10.07 in). One internal brace reinforces the structure to reduce panel vibration, making it ideal for high-output subwoofer systems. It utilizes one L-shaped slot port with an area specifically suited for high-output drivers with increased cone excursion and airflow demand. Whether used for everyday car audio where trunk space is limited or as a general-purpose home subwoofer for music and stereo systems, this design perfectly balances bass extension, size, output, and low distortion.

Volume & tuning

25 l
Internal volume
35 Hz
Tuning frequency

Box properties

Shape
Simple Rectangle
Material thickness (mm)
16
Material thickness (inch)
5/8
Box dimensions (mm)
553 × 284 × 256
Box dimensions (inch)
21.7 × 11.19 × 10.07
Max RMS speaker power up to
4600 W
Speaker mounting panel layers
Single
Number of bands
1

Enclosure & speaker

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

Port

Port type
Rectangular
Port count
1
Port area (sq.mm)
5189
Appearances
View all
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