MIL-DTL-10911/8C
Frequency
Points
200
500
2,000
2,200
2,400
2,600
4,000
5,000
(Hertz)
Upper
Limits
+10.0
+10.0
+10.0
+12.59
+15.0
+15.0
+15.0
+15.0
(see note)
(dB)
Lower
Limits
-20.0
0.0
0.0
0.0
+2.39
+5.0
+5.0
-1.0
(see note)
(dB)
NOTE: Decibel (dB) limits between key break points are calculated, using the slope method.
FIGURE 2. Frequency response limits.
REQUIREMENTS:
Design and construction:
Dimensions and configuration: See figure 1.
Testing enclosure for measuring frequency response, harmonic distortion, vibration, and shock: 5 x 5 x 3-
inchtest cabinet with 2.75-inch diameter loudspeaker opening.
Terminal finish: Hot-dip solder (finish M221 of MIL-DTL-14072).
Power capacity: 2 watts, rms.
Peak power capacity: 5 watts, rms.
Dielectric withstanding test voltage: 400 ± 5 volts.
Voice coil impedance:
Dash number 01: 4-8 ohms.
Dash number 02: 45 ohms.
Frequency response range: 200 to 5,000 Hz.
2