JC540W-8C
Key Features:
  • 5.2" (134 mm), 8 ohm
  • Extended Range Music and Voice Coax, 25 watt
  • Ferrite magnet, Black Talc Filled Polypropylene cone with Santoprene surround
  • 1" Titanium Dome Tweeter
  • Ideal for Outdoor audio applications

Primary Specifications

Speakers Environment Outdoor
ROHS Compliant No

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 5.2 / 134.0 inch / mm
Rated Impedance 8 ohms
Rated Power 25.0 Watts
Program Power 50 Watts
Frequency Range 50 - 20000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
87 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) 57 Hz
D.C. Resistance (Re) 6.5 ohms
Mechanical Q (Qms) 5.9
Electrical Q (Qes) 0.683
Total Q (Qts) 0.61
Compliance Equivalent Volume (Vas) ltr
BL Product (BL) T-M
Maximum Linear Excursion (Xmax) 4.4 mm
Surface Area of Cone (Sd) 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 Santoprene
Dust Cap Polypropylene
http://s3.amazonaws.com/misco/curves/JC540W-8C.JPG
ID Description Measurements Tolerance
OD Outside Diameter 5.3 in. +/- 0.040”
CD Cutout Diameter 4.6 in. +/- 0.030”
MG Magnet Diameter 3.4 in. +/- 0.050”
HD Hole Diameter 0.4 in. +/- 0.020”
MD Mounting Diameter 5.4 in. +/- 0.020”
ID Internal Depth 2.1 in. Maximum
FT Flange Thickness 0.14 in. +/- 0.050”
NW Net Weight 958.0 g
ceramic