Model # 77SA08-1

77SA08-1
Key Features:
  • 3" (77mm), 8 ohm
  • Voice Range, 1 watts
  • Alnico magnet, paper cone
  • RoHS Compliant;
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Product Specifications & Parameters

Primary Specifications

Speakers Environment Indoor
ROHS Compliant Yes

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 3.0 / 77.0 inch / mm
Rated Impedance 8 ohms
Rated Power 1.0 Watts
Program Power 2 Watts
Frequency Range 270 - 7000 Hz
Sensitivity
(2.83 V input measured at 1 Meter) 		92 dB SPL
Voice Coil Diameter 0.6 / 15.2 inch / mm
Magnet Weight 0.4 / 10 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 420 Hz
D.C. Resistance (Re) 7.2 ohms
Mechanical Q (Qms) 8.4
Electrical Q (Qes) 12.01
Total Q (Qts) 4.95
Compliance Equivalent Volume (Vas) ltr
BL Product (BL) T-M
Maximum Linear Excursion (Xmax) mm
Surface Area of Cone (Sd) cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.12 x 0.02
Magnet Alnico
Voice Coil Wire Copper
Voice Coil Form Paper
Cone Paper
Cone Edge Paper
Dust Cap Paper

Sensitivity / Frequency

http://s3.amazonaws.com/misco/curves/77SA08-1.JPG?1345609734

Drawing

ID Description Measurements Tolerance
OD Outside Diameter 3.0 in. +/- 0.040”
CD Cutout Diameter 2.8 in. +/- 0.030”
MG Magnet Diameter 0.9 in. +/- 0.050”
HD Hole Diameter 0.31 in. +/- 0.020”
MD Mounting Diameter 3.4 in. +/- 0.020”
ID Internal Depth 0.9 in. Maximum
FT Flange Thickness 0.1 in. +/- 0.050”
NW Net Weight 55.0 g
neodymium