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Model #66RF45

66RF45
Key Features:
  • 2.5" (66mm) 45 ohm Voice Range .5 watts Ferrite magnet paper cone

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Product Specifications & Parameters

Primary Specficiations

 
Speakers EnvironmentIndoor
ROHS CompliantNo

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 2.5 / 66.0 inch / mm
Rated Impedance45 ohms
Rated Power0.5 Watts
Program Power1 Watts
Frequency Range340 - 5000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
84dB SPL
Voice Coil Diameter0.6 / 15.2inch / mm
Magnet Weight10.0 / 284.0oz / gr

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo)340Hz
D.C. Resistance (Re)43.9ohms
Mechanical Q (Qms)
Electrical Q (Qes)
Total Q (Qts)10.0
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 Edge
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 Diameter +/- 0.010”
ID Internal Depth +/- 0.025”
FT Flange Thickness +/- 0.050”
NW Net Weight
ceramic

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