Specification Sheet - Mod 12-50

12" - 50 W Mod Series Loudspeaker
Mod 12-50 -
8Ω /
16Ω
General Characteristics
Nominal Overall Diameter 306 mm 12 in
Nominal Voice Coil Diameter 32 mm 1.26 in
Magnet Weight 426 g 15 oz
Overall Weight 1.84 kg 4.06 lbs
Flux Density 1.1 T
Thiele-Small Parameters
16Ω
Voice Coil DC Resistance RE 6.3 12.5 Ω
Resonance Frequency ƒS 82 83 Hz
Mechanical Q Factor QMS 7.5 7.72
Total Q Factor QTS 1.4 1.63
Mechanical Moving Mass MMS 29.4 29.8 g
Mechanical Compliance CMS 129 125 µm/N
Force Factor BxL 7.43 9.63 Wb/m
Equivalent Acoustic Volume VAS 43.6 42.3 lt.
Maximum Linear Displacement XMAX ±1.5 ±1.5 mm
Reference Efficiency nO 1.33 1.1 %
Diaphragm Area SD 490.9 490.9 cm2
Losses Electrical Resistance RES 28 46 Ω
Voice Coil Inductance @ 1kHz LE 0.66 1 mH
Electrical Q Factor QES 1.72 2.07
Constructive Characteristics
Magnet Ferrite
Voice Coil Winding Copper
Voice Coil Former Epotex
Cone Material Paper
Surround Material Integrated Paper
Dust Dome Material Non-treated Cloth
Basket Material Pressed Sheet Steel
Electrical Characteristics
16Ω
Nominal Impedance 8 16 Ω
Rated Power 50 50 W
Musical Power 100 100 W
Sensitivity@1W,1m 94.3 93.5 dB
Product Dimensions
Note: all dimensions are in mm.
MOD12-50 angled view
MOD12-50 bottom view
MOD12-50 side view
MOD12-50 top view