57SN08-2
Key Features:
  • 2.2" (57mm), 8 ohm
  • Full Range, 10 watts
  • Neodymium magnet, Kevlar woven black 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 2.2 / 57.0 inch / mm
Rated Impedance 8 ohms
Rated Power 10.0 Watts
Program Power 20 Watts
Frequency Range 140 - 18000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
80 dB SPL
Voice Coil Diameter 0.8 / 20.3 inch / mm
Magnet Weight 1.6 / 46 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 154 Hz
D.C. Resistance (Re) 7.2 ohms
Mechanical Q (Qms) 1.9
Electrical Q (Qes) 0.7
Total Q (Qts) 0.5
Compliance Equivalent Volume (Vas) 0.3 ltr
BL Product (BL) 3.1 T-M
Maximum Linear Excursion (Xmax) 2.2 mm
Surface Area of Cone (Sd) 16.0 cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.110 X .02 / 0.205 X .02
Magnet Neodymium
Voice Coil Wire Copper
Voice Coil Form Paper
Cone Kevlar Woven Black
Cone Edge Pre-treated Black Cloth
Dust Cap Paper
http://s3.amazonaws.com/misco/curves/57SN08-2.JPG
ID Description Measurements Tolerance
OD Outside Diameter 2.4 in. +/- 0.040”
CD Cutout Diameter 2.0 in. +/- 0.030”
MG Magnet Diameter 1.3 in. +/- 0.050”
HD Hole Diameter 0.16 in. +/- 0.020”
MD Mounting Diameter 2.8 in. +/- 0.020”
ID Internal Depth 1.5 in. Maximum
FT Flange Thickness 0.1 in. +/- 0.050”
NW Net Weight 132.0 g
neodymium