JC54W-4C
Key Features:
  • 5.2" (134mm), 4 ohm
  • Woofer, 40 watts
  • Ferrite magnet, black talc filled polypropylene cone with natural rubber surround;

Primary Specifications

Speakers Environment Indoor
ROHS Compliant No

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 5.2 / 134.0 inch / mm
Rated Impedance 4 ohms
Rated Power 40.0 Watts
Program Power 80 Watts
Frequency Range 55 - 5000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
89 dB SPL
Voice Coil Diameter 1.0 / 25.4 inch / mm
Magnet Weight 10.0 / 284 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 61 Hz
D.C. Resistance (Re) 3.5 ohms
Mechanical Q (Qms) 3.4
Electrical Q (Qes) 0.45
Total Q (Qts) 0.4
Compliance Equivalent Volume (Vas) 12.0 ltr
BL Product (BL) 4.2 T-M
Maximum Linear Excursion (Xmax) 2.3 mm
Surface Area of Cone (Sd) 87.0 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 Black Talc Filled Polypropylene
Cone Edge Natural Rubber
Dust Cap Plastic
http://s3.amazonaws.com/misco/curves/JC54W-4C.JPG?1345610287
ID Description Measurements Tolerance
OD Outside Diameter 5.3 in. +/- 0.040”
CD Cutout Diameter 4.7 in. +/- 0.030”
MG Magnet Diameter 3.4 in. +/- 0.050”
HD Hole Diameter 0.4 in. +/- 0.020”
MD Mounting Diameter 5.5 in. +/- 0.020”
ID Internal Depth 2.0 in. Maximum
FT Flange Thickness 0.15 in. +/- 0.050”
NW Net Weight 795.0 g
ceramic