MC8W-4A
Key Features:
  • 8" (205mm), 4 ohm
  • Woofer, 75 watts
  • Ferrite magnet, Polypropylene cone with 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 75.0 Watts
Program Power 150 Watts
Frequency Range 35 - 5,000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
94 dB SPL
Voice Coil Diameter 1.5 / 38.1 inch / mm
Magnet Weight 28.0 / 795 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 35 Hz
D.C. Resistance (Re) 3.7 ohms
Mechanical Q (Qms) 4.89
Electrical Q (Qes) 0.265
Total Q (Qts) 0.27
Compliance Equivalent Volume (Vas) 86.4 ltr
BL Product (BL) 7.8 T-M
Maximum Linear Excursion (Xmax) 6.3 mm
Surface Area of Cone (Sd) 241.0 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 Polypropylene
Cone Edge Rubber
Dust Cap Cloth
http://s3.amazonaws.com/misco/curves/MC8W-4A.JPG
ID Description Measurements Tolerance
OD Outside Diameter 8.5 in. +/- 0.040”
CD Cutout Diameter 7.3 in. +/- 0.030”
MG Magnet Diameter 4.6 in. +/- 0.050”
HD Hole Diameter 0.4 in. +/- 0.020”
MD Mounting Diameter 7.9 in. +/- 0.020”
ID Internal Depth 3.7 in. Maximum
FT Flange Thickness 0.41 in. +/- 0.050”
NW Net Weight 2609.0 g
ceramic