Model # LS445/U

Primary Specifications

Speaker Environment

Outdoor

Technical Specifications

Units of Measure

Nominal Basket Diam

Rated Impedance

Rated Power

Program Power

Frequency Range

Sensitivity

Voice Coil Diam

Magnet Weight

Transformer

4.0 / 101.6

  8

  8.0

 

  300 to 7000

  91

  0.73 / 18.5

  5.5 / 156

inch / mm

ohms

watts

watts

Hz

dB SPL

inch/mm

oz/g

Material Descriptions

Basket

Terminal Size

Magnet

Voice Coil Wire

Cast Aluminum

0.152 by 0.025

Barium Ferrite

Copper

Small Signal Parameters

Units of Measure

Resonant Frequency (fo)

D.C. Resistance (Re)

Mechanical Q (Qms)

Electrical Q (Qes)

Total Q

Compliance Equiv Vol (Vas)

BL Product (BL)

Max Linear Excursion (Xmax)

Surface Area of Cone (Sd)

Moving Mass (Mmd)

590

7.0

Hz

ohms

 

 

 

ltr

T-M

mm

cm2

g

Voice Coil Form

Cone

Cone Edge

Dust Cap

Meta-aramid laminate

Cloth impregnated with phenolic resin

Cloth impregnated with phenolic resin

Cloth impregnated with phenolic resin

Model No.: LS445/U

KEY FEATURES

  • 4" (101.6 mm) square, 8 ohm
  • Voice Range, 8 watt
  • Ferrite magnet, Phenolic impregnated Cone and Dust cap
  • NSN 5965-008-923665
  • Built & Tested IAW MIL-DTL-12606
  • used in Communication panels
  • ships with rubber gasket and steel front screen
images/original/missing.jpg

ID    Description    Measurements    Tolerance

OD

CD

MG

HD

MD

ID

FT

NW

Outside Diam

Cutout Diam

Magnet Diam

Hole Diam

Mounting Diam

Internal Depth

Flange Thick.

Net Weight

  4.0

  3.41

  2.8

  0.2

  4.69

  1.3

  0.22

  556.0 g

+/- 0.020"

+/- 0.020"

+/- 0.050"

+/- 0.010"

+/- 0.010"

+/- 0.025"

+/- 0.050"