77SF08-3WP
Key Features:
  • 3" (77 mm), 8 ohm
  • Waterproof voice range, 10 watts
  • Ferrite magnet, paper cone with foam polyether surround;

Primary Specifications

Speakers Environment Outdoor
ROHS Compliant No

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 3.0 / 77.0 inch / mm
Rated Impedance 8 ohms
Rated Power 10.0 Watts
Program Power 20 Watts
Frequency Range 130 - 19000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
86 dB SPL
Voice Coil Diameter 0.8 / 20.3 inch / mm
Magnet Weight 3.6 / 102 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 130 Hz
D.C. Resistance (Re) 6.7 ohms
Mechanical Q (Qms) 3.1
Electrical Q (Qes) 1.1
Total Q (Qts) 0.8
Compliance Equivalent Volume (Vas) 0.8 ltr
BL Product (BL) 3.6 T-M
Maximum Linear Excursion (Xmax) 1.5 mm
Surface Area of Cone (Sd) 32.2 cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.110 X 0.02 / 0.205 X 0.02
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Paper
Cone Paper
Cone Edge Polyether Foam
Dust Cap Mylar
http://s3.amazonaws.com/misco/curves/77SF08-3WP.JPG
ID Description Measurements Tolerance
OD Outside Diameter 3.2 in. +/- 0.040”
CD Cutout Diameter 2.8 in. +/- 0.030”
MG Magnet Diameter 2.4 in. +/- 0.050”
HD Hole Diameter 0.27 in. +/- 0.020”
MD Mounting Diameter 3.4 in. +/- 0.020”
ID Internal Depth 1.5 in. Maximum
FT Flange Thickness 0.2 in. +/- 0.050”
NW Net Weight 310.0 g
ceramic