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Omni One — acoustic test report
Speech level reduction 30.1 dB, Class A. Tested to ISO 23351-1:2020.
Acoustic testing.
Speech-level-reduction reports tested by SGS to ISO 23351-1:2020, organised by acoustic grade. Each document opens in a new tab.
Grade A
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Omni Four — acoustic test report
Speech level reduction 30.5 dB, Class A. Tested to ISO 23351-1:2020.
