Universal box template

Single 15-inch Rectangular Vented / Bass-Reflex Subwoofer Box - 65 L / 35 Hz

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

Description

This Vented / Bass-Reflex enclosure is specifically designed for a single 15-inch rectangular subwoofer, featuring a 65 L chamber professionally tuned to 35 Hz. Built from 18 mm (3/4 inch) material with a simple rectangle shape, the cabinet measures 633 × 466 × 419 mm (25.28 × 18.39 × 16.55 in). One internal brace reinforces the structure and minimizes panel vibration, making it ideal for high-output systems. The design utilizes one L-shaped slot port with an area optimized for high-excursion drivers and SPL-oriented use requiring high airflow. Whether used as a general-purpose home subwoofer to balance bass extension and low distortion or for everyday car-audio where trunk space and installation constraints are key, this box provides a perfectly balanced sound.

Volume & tuning

65 l
Internal volume
35 Hz
Tuning frequency

Box properties

Shape
Simple Rectangle
Material thickness (mm)
18
Material thickness (inch)
3/4
Box dimensions (mm)
634 × 466 × 420
Box dimensions (inch)
25.28 × 18.39 × 16.55
Max RMS speaker power up to
700 W
Speaker mounting panel layers
Single
Number of bands
1

Enclosure & speaker

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

Port

Port type
Rectangular
Port count
1
Port area (sq.mm)
28502
Appearances
View all
Similar boxes for 15" speakers