OC12WF-4B
Key Features:
  • 12" (304 mm), 4 ohm
  • Woofer, 100 watt
  • Ferrite magnet, Black Talc Filled Polypropylene cone with Polyether Foam surround;

Primary Specifications

Speakers Environment Indoor
ROHS Compliant No

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 12.0 / 304.0 inch / mm
Rated Impedance 4 ohms
Rated Power 100.0 Watts
Program Power 200 Watts
Frequency Range 25 - 1500 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
92 dB SPL
Voice Coil Diameter 2.0 / 50.8 inch / mm
Magnet Weight 38.0 / 1079 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 31 Hz
D.C. Resistance (Re) 3.6 ohms
Mechanical Q (Qms) 8.9
Electrical Q (Qes) 0.49
Total Q (Qts) 0.47
Compliance Equivalent Volume (Vas) 152.9 ltr
BL Product (BL) 9.6 T-M
Maximum Linear Excursion (Xmax) 5.8 mm
Surface Area of Cone (Sd) 523.0 cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.25 X 0.03
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Kapton
Cone Black Talc Filled Polypropylene
Cone Edge Polyether Foam
Dust Cap Plastic
http://s3.amazonaws.com/misco/curves/OC12WF-4B.JPG?1345610655
ID Description Measurements Tolerance
OD Outside Diameter 12.2 in. +/- 0.040”
CD Cutout Diameter 11.1 in. +/- 0.030”
MG Magnet Diameter 5.3 in. +/- 0.050”
HD Hole Diameter 0.3 in. +/- 0.020”
MD Mounting Diameter 11.3 in. +/- 0.020”
ID Internal Depth 5.3 in. Maximum
FT Flange Thickness 0.23 in. +/- 0.050”
NW Net Weight 3833.0 g
ceramic