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Model # JC4C-4

JC4C-4
Key Features:
  • 4" (100mm), 4 ohm
  • Full Range, 15 watts
  • Ferrite magnet, paper cone with pre-treated black cloth surround;

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View/Download Product Specifications (printable pdf)

Product Specifications & Parameters

Primary Specifications

 
Speakers Environment Indoor
ROHS Compliant No

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 4.0 / 100.0 inch / mm
Rated Impedance 4 ohms
Rated Power 15 Watts
Program Power 30 Watts
Frequency Range 75 - 12000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
92 dB SPL
Voice Coil Diameter 0.8 / 20.3 inch / mm
Magnet Weight 10.0 / 284 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 126 Hz
D.C. Resistance (Re) 3.3 ohms
Mechanical Q (Qms) 2.4
Electrical Q (Qes) 0.88
Total Q (Qts) 0.64
Compliance Equivalent Volume (Vas) 1.5 ltr
BL Product (BL) 3.6 T-M
Maximum Linear Excursion (Xmax) 2.4 mm
Surface Area of Cone (Sd) 53.0 cm2
Moving Mass (Mmd) KA gr

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.205 x 0.02
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Aluminum
Cone Paper
Cone Edge Pre-treated Black Cloth
Dust Cap Paper

Sensitivity / Frequency

http://s3.amazonaws.com/misco/curves/JC4C-4.JPG?1345610256

Drawing

ID Description Measurements Tolerance
OD Outside Diameter 4.1 in. +/- 0.040”
CD Cutout Diameter 3.7 in. +/- 0.030”
MG Magnet Diameter 3.4 in. +/- 0.050”
HD Hole Diameter 0.2 in. +/- 0.020”
MD Mounting Diameter 4.7 in. +/- 0.020”
ID Internal Depth 1.8 in. Maximum
FT Flange Thickness 0.1 in. +/- 0.050”
NW Net Weight 762.0 g
ceramic

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