Features
When acoustically exciting a structure, excitation that simulates a point sound source is often required. To simulate a point sound source, sound waves need to radiate uniformly in all directions (360°).
ESTECH developed an acoustic excitation sound source by arranging speakers in a dodecahedral configuration to achieve conditions that are nearly equivalent to a point sound source.
Despite its compact 150 mm outer diameter, it enables acoustic excitation starting from the low-frequency range (from 20 Hz) when used together with an optional audio amplifier.
In addition, characteristic data (“volumetric acceleration / applied voltage E is provided for each unit, allowing you to calculate accurate excitation force from the applied voltage and use it easily.
Specifications
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Outer diameter: 150 mm / Weight: 2.2 kg
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Rated input: 120 W
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50 mm full-range speakers x 12
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Resin frame
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UNC 3/8 female thread (for stand mounting / suspension): 1 location
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Mono mini jack (for applied-voltage input): 1 location
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Options
Cable for acoustic excitation sound source (dual-branch, voltage drop)
Audio amplifier: YAMAHA A-S801
