90OF08-SH
Key Features:
  • 2.0 X 3.5" (50 X 90mm), 8 ohm
  • Full Range, 5 watts
  • Ferrite magnet, paper cone with pre-treated black cloth surround
  • RoHS compliant;

Primary Specifications

Speakers Environment Indoor
ROHS Compliant Yes

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 2.0 x 3.5 / 50.0 x 90.0 inch / mm
Rated Impedance 8 ohms
Rated Power 5.0 Watts
Program Power 10 Watts
Frequency Range 170 - 20000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
84 dB SPL
Voice Coil Diameter 0.6 / 15.2 inch / mm
Magnet Weight 1.2 / 33 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 170 Hz
D.C. Resistance (Re) 7.0 ohms
Mechanical Q (Qms) 3.0
Electrical Q (Qes) 1.73
Total Q (Qts) 1.1
Compliance Equivalent Volume (Vas) 0.6 ltr
BL Product (BL) 2.2 T-M
Maximum Linear Excursion (Xmax) 1.0 mm
Surface Area of Cone (Sd) 26.0 cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.110 X 0.02
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Paper
Cone Paper
Cone Edge Pre-treated Black Cloth
Dust Cap Paper
http://s3.amazonaws.com/misco/curves/90OF08-SH.JPG
ID Description Measurements Tolerance
OD Outside Diameter 3.5 in. +/- 0.040”
CD Cutout Diameter 3.3 in. +/- 0.030”
MG Magnet Diameter 1.9 in. +/- 0.050”
HD Hole Diameter 0.24 in. +/- 0.020”
MD Mounting Diameter 1.6 in. +/- 0.020”
ID Internal Depth 1.6 in. Maximum
FT Flange Thickness 0.1 in. +/- 0.050”
NW Net Weight 196.0 g
ceramic