EN4S-4FR
Key Features:
  • 4" (100mm), 4 ohm
  • Voice Range, 12 watts
  • Neodymium magnet, flame retardant paper cone;

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 12.0 Watts
Program Power 24 Watts
Frequency Range 200 - 8000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
88 dB SPL
Voice Coil Diameter 0.8 / 20.3 inch / mm
Magnet Weight 0.4 / 12 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 276 Hz
D.C. Resistance (Re) 3.0 ohms
Mechanical Q (Qms) 6.7
Electrical Q (Qes) 2.45
Total Q (Qts) 1.79
Compliance Equivalent Volume (Vas) ltr
BL Product (BL) T-M
Maximum Linear Excursion (Xmax) 1.3 mm
Surface Area of Cone (Sd) cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.205 X 0.02
Magnet Neodymium
Voice Coil Wire Copper
Voice Coil Form Aluminum
Cone Flame Retardant Paper
Cone Edge Paper
Dust Cap Paper
http://s3.amazonaws.com/misco/curves/EN4S-4FR.JPG?1345610113
ID Description Measurements Tolerance
OD Outside Diameter 4.1 in. +/- 0.040”
CD Cutout Diameter 3.8 in. +/- 0.030”
MG Magnet Diameter 1.1 in. +/- 0.050”
HD Hole Diameter 0.2 in. +/- 0.020”
MD Mounting Diameter 4.7 in. +/- 0.020”
ID Internal Depth 1.2 in. Maximum
FT Flange Thickness 0.1 in. +/- 0.050”
NW Net Weight 104.0 g
neodymium