100SF08-3
Key Features:
  • 4" (100 mm), 8 ohm
  • Full Range, 20 watt
  • Ferrite magnet, paper cone with Polyether foam surround
  • RoHS Compliant;

Primary Specifications

Speakers Environment Indoor
ROHS Compliant Yes

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 4.0 / 100.0 inch / mm
Rated Impedance 8 ohms
Rated Power 20.0 Watts
Program Power 40 Watts
Frequency Range 100 - 15000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
86 dB SPL
Voice Coil Diameter 0.7 / 17.8 inch / mm
Magnet Weight 10.0 / 284 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 95 Hz
D.C. Resistance (Re) 6.8 ohms
Mechanical Q (Qms) 5.2
Electrical Q (Qes) 1.8
Total Q (Qts) 1.34
Compliance Equivalent Volume (Vas) 3.8 ltr
BL Product (BL) 2.3 T-M
Maximum Linear Excursion (Xmax) 1.0 mm
Surface Area of Cone (Sd) 53.0 cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size .205 X .020 / .110 X .020
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Paper
Cone Paper
Cone Edge Polyether Foam
Dust Cap Paper
http://s3.amazonaws.com/misco/curves/100SF08-3.JPG
ID Description Measurements Tolerance
OD Outside Diameter 4.0 in. +/- 0.040”
CD Cutout Diameter 3.7 in. +/- 0.030”
MG Magnet Diameter 2.4 in. +/- 0.050”
HD Hole Diameter 0.16 in. +/- 0.020”
MD Mounting Diameter 4.5 in. +/- 0.020”
ID Internal Depth 1.8 in. Maximum
FT Flange Thickness 0.2 in. +/- 0.050”
NW Net Weight 307.0 g
ceramic