M-812687
Key Features:
  • 4" (100 mm), 8 ohm
  • Tweeter, 10 watts
  • Ferrite magnet, 1" dome tweeter
  • RoHS Compliant;

Primary Specifications

Speakers Environment Indoor
ROHS Compliant Yes

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 4.0 / 100.0 inch / mm
Rated Impedance 8 ohms
Rated Power 10.0 Watts
Program Power 20 Watts
Frequency Range 850 - 20000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
92 dB SPL
Voice Coil Diameter 1.0 / 25.4 inch / mm
Magnet Weight 8.9 / 253 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 806 Hz
D.C. Resistance (Re) 7.2 ohms
Mechanical Q (Qms) 2.4
Electrical Q (Qes) 0.91
Total Q (Qts) 0.66
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 Cast Aluminum
Terminal Size 0.110 X 0.02
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Aluminum
Cone Silk Dome
Cone Edge Silk
Dust Cap None
http://s3.amazonaws.com/misco/curves/M-812687.JPG
ID Description Measurements Tolerance
OD Outside Diameter 4.1 in. +/- 0.040”
CD Cutout Diameter +/- 0.030”
MG Magnet Diameter 2.8 in. +/- 0.050”
HD Hole Diameter 0.2 in. +/- 0.020”
MD Mounting Diameter 3.7 in. +/- 0.020”
ID Internal Depth 1.0 in. Maximum
FT Flange Thickness 0.17 in. +/- 0.050”
NW Net Weight 569.0 g
ceramic