LC7C-8A
Key Features:
  • 7" (177mm), 8 ohm edgewound coil
  • Woofer, 50 watts
  • Ferrite magnet, White paper with cloth surround
  • Mounting fits NS10
  • RoHS compliant

Primary Specifications

Speakers Environment Indoor
ROHS Compliant Yes

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 7.0 / 177.0 inch / mm
Rated Impedance 8 ohms
Rated Power 50.0 Watts
Program Power 100 Watts
Frequency Range 40 - 7,000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
92 dB SPL
Voice Coil Diameter 1.5 / 38.1 inch / mm
Magnet Weight 20.0 / 568 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 43 Hz
D.C. Resistance (Re) 6.9 ohms
Mechanical Q (Qms) 6.6
Electrical Q (Qes) 0.488
Total Q (Qts) 0.45
Compliance Equivalent Volume (Vas) 63.6 ltr
BL Product (BL) 5.8 T-M
Maximum Linear Excursion (Xmax) 4.0 mm
Surface Area of Cone (Sd) 167.0 cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Stamped Steel
Terminal Size 0.25 X 0.3 / 0.19 X 0.02
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Nomex
Cone White Paper
Cone Edge Cloth
Dust Cap Paper
http://s3.amazonaws.com/misco/curves/LC7C-8A.JPG
ID Description Measurements Tolerance
OD Outside Diameter 7.3 in. +/- 0.040”
CD Cutout Diameter 6.4 in. +/- 0.030”
MG Magnet Diameter 4.6 in. +/- 0.050”
HD Hole Diameter 0.24 in. +/- 0.020”
MD Mounting Diameter 7.6 in. +/- 0.020”
ID Internal Depth 3.3 in. Maximum
FT Flange Thickness 0.14 in. +/- 0.050”
NW Net Weight 2176.0 g
ceramic