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Easy design for Ceiling Speaker
Using sound pressure guide

The following TOA product families have the ability to display a sound pressure guide to visualize sound pressure. For convenience, we will call this "balloon".
This page will suggest a design method using this "balloon".
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This is not intended to reproduce exact acoustic effects.
However, it can help designers roughly estimate the number of speakers in the early design stage, when building materials and acoustic environment are unknown.

F-122C, F-122CU, F-122CU2,
F-1522SC, F-1522SCEN
F-2322C, F-2322CU2, F-2322CEN
F-2352C, F-2352CU2, F-2352CEN, F-2352SC, F-2352SCEN

PC-1860, PC-1680EN, PC-1860BS, PC-1860BS-C, PC-1860F, PC-1860S, PC-1865BS
PC-1869
PC-2360, PC-2360EN
PC-2369
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PC-2852, PC-2869

Please download the file from the main page.
Files with "balloon" are also stored in zip files along with other data.

The data can be downloaded here.
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When placing ceiling speakers, you need to know how far a single speaker can deliver sound.

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Once you know this range, you can arrange the speakers so that this range touches them.

At the Architect stage, it may be okay to design a PA system roughly, but if you can understand the general service area of the speakers at this stage, you can roughly determine the number of speakers you will need in advance.

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The size of this service area changes depending on the speaker settings and the required sound pressure.


The service area also changes depending on the height of the ceiling.

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TOA's .rfa data makes use of Revit's 3D function, making it possible to display sound pressure guides not only on a flat surface but also on a 3D field.
The iso-sound pressure surface of the desired sound pressure specified by the user is displayed.

Also, by inputting the required values, you can draw a sound pressure guide of the corresponding size.


The following three tutorials will suggest you how to design using TOA's .rfa files.
1 will explain basic knowledge about sound pressure distribution,
2 will explain the meaning of the operations that will be explained in 3,
3 will explain how to operate Revit.
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Please click on the links below to enter.

1: Sound pressure distribution

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2: How to design

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3: How to use Revit families

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