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SNR 24 dB | Standard noise reduction | |
H 25 | High frequency attenuation | |
M 20 | Medium frequency attenuation | |
L 19 | Low frequency attenuation |
American National Standards Institute
|
ANSI S3.19-1974 American National Standards Institute
|
Manufacturer | C_Deltaplus |
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CONICAP01
BND
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