JC42PD-A
Key Features:
  • 4.5" (115mm), 8 ohm
  • Full Range, 15 watts
  • Aluminum magnet, Polypropylene cone with treated cloth surround
  • High frequency whizzer cone

Primary Specifications

Speakers Environment Outdoor
ROHS Compliant No

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 4.5 / 115.0 inch / mm
Rated Impedance 8 ohms
Rated Power 15.0 Watts
Program Power 30 Watts
Frequency Range 100 - 10000 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) 110 Hz
D.C. Resistance (Re) 6.8 ohms
Mechanical Q (Qms) 1.9
Electrical Q (Qes) 0.7
Total Q (Qts) 0.52
Compliance Equivalent Volume (Vas) 2.9 ltr
BL Product (BL) 5.7 T-M
Maximum Linear Excursion (Xmax) 1.1 mm
Surface Area of Cone (Sd) 68.0 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 Aluminum
Cone Polypropylene
Cone Edge Cloth
Dust Cap Paper Whizzer
http://s3.amazonaws.com/misco/curves/JC42PD-A.JPG?1345610250
ID Description Measurements Tolerance
OD Outside Diameter 4.6 in. +/- 0.040”
CD Cutout Diameter 4.1 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 0.44 in. +/- 0.050”
NW Net Weight 770.0 g
ceramic