OC8W-4C
Key Features:
  • 8" (205mm), 4 ohm
  • Woofer, 150 watts
  • Ferrite magnet, water resistant paper cone with neoprene rubber surround;

Primary Specifications

Speakers Environment Indoor
ROHS Compliant No

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 8.0 / 205.0 inch / mm
Rated Impedance 4 ohms
Rated Power 150.0 Watts
Program Power 300 Watts
Frequency Range 25 - 3000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
88 dB SPL
Voice Coil Diameter 2.0 / 50.8 inch / mm
Magnet Weight 40.0 / 1136 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 35 Hz
D.C. Resistance (Re) 3.6 ohms
Mechanical Q (Qms) 9.8
Electrical Q (Qes) 0.34
Total Q (Qts) 0.33
Compliance Equivalent Volume (Vas) 39.6 ltr
BL Product (BL) 9.2 T-M
Maximum Linear Excursion (Xmax) 10.3 mm
Surface Area of Cone (Sd) 222.0 cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.205 x 0.02
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Kapton
Cone Water Resistant Paper
Cone Edge Neoprene Rubber
Dust Cap Plastic
http://s3.amazonaws.com/misco/curves/OC8W-4C.JPG
ID Description Measurements Tolerance
OD Outside Diameter 8.2 in. +/- 0.040”
CD Cutout Diameter 7.3 in. +/- 0.030”
MG Magnet Diameter 5.3 in. +/- 0.050”
HD Hole Diameter 0.3 in. +/- 0.020”
MD Mounting Diameter 7.3 in. +/- 0.020”
ID Internal Depth 3.8 in. Maximum
FT Flange Thickness 0.17 in. +/- 0.050”
NW Net Weight 3374.0 g
ceramic