Samsung CNH NDB Series Technical Data Book page 46

7. Sound Data
Wind-Free 4Way Cassette
Sound Power level
NOTE
Specifications may be subject to change without prior notice
- Sound power level is an absolute value that a sound source
generates.
- dBA = A-weighted sound power level.
- Reference power : 1pW.
- Measured according to ISO 3741.
NC Curve
6)
Model