MIL-DTL-24223/1B(SH)
Draft Dated 14 January 2014
TABLE I. On-axis sound pressure output.
Decibel (dB)1/ Output in Warble Band (Hertz)
Type
Distance
800 to
1250 to
2,000 to
3,200 to
(FT)
1 VA (max)
320 to 500
500 to 800
1,250
2,000
3,200
5,000
LS-305()/SIC
5
88
88
90
89
89
90
LS-306()/SIC
5
88
88
90
89
89
90
LS-530()/SIC
5
88
88
91
91
91
88
LS-531()/SIC
5
88
88
91
91
91
88
NOTE:
1/
dB re 0.0002 dynes/cm2 at the distance specified.
Sound pressure distribution:
TABLE II. Off-axis sound pressure output.
Decibel (dB) Decrease in Relative Sound Pressure Output
Type
30 Degrees Off-Axis
30 Degrees Off-Axis (Vertical Plane)
1 watt
(Horizontal Plane)
LS-305()/SIC
2.0
2.0
LS-306()/SIC
2.0
2.0
LS-530()/SIC
2.0
2.0
LS-531()/SIC
2.0
2.0
Frequency response: Shall fall within the FIGURE 2 limits over the band shown for any volume setting.
3
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