MX-40-8
Key Features:
  • 4" (100mm), 8 ohm
  • Extended Range Music and Voice, 40 watts
  • Ferrite magnet, titanium electroplated polypropylene cone with rubber surround
  • Includes wire mesh grille.

Primary Specifications

Speakers Environment Indoor
ROHS Compliant No

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 4.0 / 100.0 inch / mm
Rated Impedance 8 ohms
Rated Power 40.0 Watts
Program Power 80 Watts
Frequency Range 100 - 20000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
87 dB SPL
Voice Coil Diameter 1.0 / 25.4 inch / mm
Magnet Weight 10.0 / 284 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 113 Hz
D.C. Resistance (Re) 6.5 ohms
Mechanical Q (Qms) 3.2
Electrical Q (Qes) 0.66
Total Q (Qts) 0.55
Compliance Equivalent Volume (Vas) 1.9 ltr
BL Product (BL) 5.6 T-M
Maximum Linear Excursion (Xmax) 1.1 mm
Surface Area of Cone (Sd) 54.0 cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.205 X 0.02
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Aluminum
Cone Titanium Electroplated Polypropylene
Cone Edge Rubber
Dust Cap Felt
http://s3.amazonaws.com/misco/curves/MX-40-8.JPG
ID Description Measurements Tolerance
OD Outside Diameter 4.0 in. +/- 0.040”
CD Cutout Diameter 3.7 in. +/- 0.030”
MG Magnet Diameter 3.4 in. +/- 0.050”
HD Hole Diameter 0.3 in. +/- 0.020”
MD Mounting Diameter 4.6 in. +/- 0.020”
ID Internal Depth 1.8 in. Maximum
FT Flange Thickness 0.1 in. +/- 0.050”
NW Net Weight 766.0 g
ceramic