Specification Sheet - 12" Electric Lightning 70

12" - 70 W Jet Series Loudspeaker
General Characteristics
Nominal Overall Diameter 307 mm 12 in
Nominal Voice Coil Diameter 50 mm 2 in
Magnet Weight 1450 g 51 oz
Overall Weight 4.5 kg 9.92 lbs
Flux Density 1.15 T
Voice Coil Winding Depth 10 mm 0.39 in
Magnetic Gap Depth 8 mm 0.31 in
Thiele-Small Parameters
16Ω
Voice Coil DC Resistance RE 6.33 11.94 Ω
Resonance Frequency ƒS 95 93 Hz
Mechanical Q Factor QMS 14.77 14.5
Total Q Factor QTS 0.67 0.88
Mechanical Moving Mass MMS 29.9 28.3 g
Mechanical Compliance CMS 94 103 µm/N
Force Factor BxL 12.7 14.56 Wb/m
Equivalent Acoustic Volume VAS 32 35.3 lt.
Maximum Linear Displacement XMAX ±1 ±1 mm
Reference Efficiency nO 3.76 2.92 %
Diaphragm Area SD 490.9 490.9 cm2
Losses Electrical Resistance RES 133.3 185.7 Ω
Voice Coil Inductance @ 1kHz LE 0.6 0.8 mH
Electrical Q Factor QES 0.70 0.94
Constructive Characteristics
Magnet Ferrite
Voice Coil Winding Aluminum
Voice Coil Former Kapton
Cone Material Paper
Surround Material Integrated Paper
Dust Dome Material Non-treated Cloth
Basket Material Pressed Sheet Steel
Surround Treatment Yes
Electrical Characteristics
16Ω
Nominal Impedance 8 16 Ω
Rated Power 70 70 W
Musical Power 140 140 W
[email protected],1m 99 98.1 dB
Product Dimensions
JC12-70EL angled view
JC12-70EL bottom view
JC12-70EL side view
JC12-70EL top view