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Model #77SF04-3SH

77SF04-3SH
Key Features:
  • 3" (77mm) 4 ohm Full Range 8 watts Ferrite magnet paper cone with polyether foam surround RoHS compliant

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Product Specifications & Parameters

Primary Specficiations

 
Speakers EnvironmentIndoor
ROHS CompliantYes

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 3.0 / 77.0 inch / mm
Rated Impedance4 ohms
Rated Power8.0 Watts
Program Power16 Watts
Frequency Range100 - 10000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
85dB SPL
Voice Coil Diameter0.8 / 20.3inch / mm
Magnet Weight2.65 / 75.0oz / gr

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo)120Hz
D.C. Resistance (Re)3.6ohms
Mechanical Q (Qms)
Electrical Q (Qes)
Total Q (Qts)
Compliance Equivalent Volume (Vas) ltr
BL Product (BL) T-M
Maximum Linear Excursion (Xmax) mm
Surface Area of Cone (Sd) cm2

Material Descriptions

 
BasketStamped Steel
Terminal Size
MagnetFerrite
Voice Coil WireCopper
Voice Coil Form
ConePaper
Cone EdgePolyether Foam
Dust Cap

Drawing

ID Description MeasurementsTolerance
OD Outside Diameter +/- 0.020”
CD Cutout Diameter +/- 0.020”
MG Magnet Diameter +/- 0.050”
HD Hole Diameter +/- 0.010”
MD Mounting Diameter3.4 in. +/- 0.010”
ID Internal Depth +/- 0.025”
FT Flange Thickness +/- 0.050”
NW Net Weight
ceramic

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