A3S
Key Features:
  • 3" (77mm), 8 ohm
  • Voice Range, 3 watts
  • Alnico magnet, felted paper cone;

Primary Specifications

Speakers Environment Indoor
ROHS Compliant No

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 3.0 / 77.0 inch / mm
Rated Impedance 8 ohms
Rated Power 3.0 Watts
Program Power 6 Watts
Frequency Range 280 - 8000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
87 dB SPL
Voice Coil Diameter 0.7 / 17.8 inch / mm
Magnet Weight 0.5 / 15 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 352 Hz
D.C. Resistance (Re) 6.3 ohms
Mechanical Q (Qms) 7.7
Electrical Q (Qes) 8.36
Total Q (Qts) 4.01
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 0.19 X 0.02
Magnet Alnico
Voice Coil Wire Copper
Voice Coil Form Aluminum
Cone Felted Paper
Cone Edge Felted Paper
Dust Cap Felt
http://s3.amazonaws.com/misco/curves/A3S.JPG?1345609804
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 0.2 in. +/- 0.020”
MD Mounting Diameter 3.4 in. +/- 0.020”
ID Internal Depth 1.1 in. Maximum
FT Flange Thickness 0.1 in. +/- 0.050”
NW Net Weight 77.0 g
neodymium