LS-445/U

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Loudspeaker LS-445/U is an unencased, 2-watt, gunblast and immersion resistant permanent magnet type loudspeaker unit. It has a 4-inch diameter cone with a voice coil impedance of 8 ohms.


Specification

CONSISTS OF
1 Permanent Magnet Loudspeaker - LS-445/U
RELATIONSHIP TO SIMILAR EQUIPMENT
PHYSICAL DESCRIPTION:
Diameter - 4 inches (101.60 mm)
Mounting Dimensions:
Four number 10 - 24 thd tapped holes on 3-5/16 inch by 3-5/16 inch mounting centers.
Terminal/Connector Designation - Two Solder Type terminals
Over-all Dimensions
Length - 4 inches (101.60 mm)
Width - 4 inches (101.60 mm)
Depth - 2-3/8 inches (maximum) (60.33 mm)
Weight - 1/2 lbs.
INPUT
Voice coil impedance - 8 ohms ±1 ohm
Power handling rating - 2 watts, normal
Frequency range - 300 to 7,000 cps
Environmental Service
Temperature - 80° F to + 160° F
Moisture - In accordance with Method 106, of MIL-STD-202
Immersion - 3 feet of tap water for 24 hours
Bounce - In accordance with MIL-L-12606
Fungus - Treated for moisture and fungus resistance in accordance with MIL-T-152


Reference Files

MSS 5965-6
MIL-L-12606
Drawing SC-D-53366
Pricing Guide for Signal Corps Equipment SIG 5-5