Sound Levels - Sinclair SDV5 Series Service Manual

8 Sound Levels

8.1 Overall
Table 8.1: Compact Four-way Cassette sound pressure levels
Model name
SSH
SDV5-22CA 35
SDV5-28CA
35
SDV5-36CA
41
SDV5-45CA 41
Notes:
1. Sound pressure levels are measured 1.4m below the unit in a semi-anechoic
chamber. During in-situ operation, sound pressure levels may be higher as a
result of ambient noise.
8.2 Octave Band Levels
Figure 8.2: SDV5-22-28CA octave band levels
80
70
60
50
40
SSH
SH
H
30
M
L
SL
SSL
20
10
0
63 125
Octave band center frequency (Hz)
16
Sound pressure levels dB(A)
SH H M L
34 33 29 26
34 33 29 26
38 35 32 30
38 35 32 30
250 500 1000 2000 4000 8000
Figure 8.1: Compact Four-way Cassette sound pressure level
1
measurement
SL SSL
23 22
23 22
29 28
29 28
Figure 8.3: SDV5-36-45CA octave band levels
80
70
NC65
60
NC60
NC55
50
NC50
NC45
40
SSH
SH
NC40
H
M
NC35
30
L
SL
NC30
SSL
NC25
20
NC20
NC15
10
0
63
1.4m
125 250 500 1000 2000 4000 8000
Octave band center frequency (Hz)
NC65
NC60
NC55
NC50
NC45
NC40
NC35
NC30
NC25
NC20
NC15