Practical tools for measured work
Subwoofer Placement Planner
Plot practical boundary, centre and quarter-room subwoofer test positions around the listening seat.
These are measurement candidates, not placement recommendations or predicted winners. Put the sub at each accessible point, level-match it, then compare response across the listening area.
How it works
How to use it: enter room dimensions and listener position. The plan marks six distinct starting locations and reports their direct distances to the main seat.
Method. Candidates sample centre, quarter and boundary-adjacent positions because each excites room modes differently.
Example. In a 4.2 by 5.5 m room, the front-quarter point is 1.05 m from the left wall and 0.44 m from the front wall.
Current-input example
The result above uses these exact values. This snapshot is included when the page is printed so the output can be checked against the original measurements.
- Room width
- 4.2 m
- Room length
- 5.5 m
- Listener from rear wall
- 38 %
Primary result: Front centre: 2.97 m.
Before using the result
- Measure from the datum or reference edge described by this tool, and do not mix inside, outside and centerline dimensions.
- Keep inputs in the displayed units and preserve more precision than the final cutting or purchasing tolerance requires.
- When the result is close to a limit, verify it with a test piece, field measurement, manufacturer drawing or qualified project professional.
Limitations
Room dimensions alone cannot rank subwoofer positions. Crossover, phase, multiple seats, construction and openings matter. Measure frequency response and decay, and use the subwoofer crawl only as a practical screening method.
Frequently asked questions
Is a corner always loudest?
Corner loading often increases output, but it can also worsen modal peaks. The smoothest measured response is usually more useful than maximum level.
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