MCAC-VTSM-2017-01 Silent Four-way Cassette
98
9. Sound levels
Note:
1. Sound values are measured in a semi-anechoic room, at a position 1.4m downward from the unit center
2. During actual operation, these values are normally somewhat higher as a result of ambient conditions.
Sound pressure level dB(A)
Octave band level
MDV-D28Q4/N1-E ~ MDV-D36Q4/N1-E
1.4m
Four-way cassette type
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
H
M
L
NC60
NC50
NC40
NC30
NC20