These are surplus production stock we have in our stores.

GENERAL CHARACTERISTICS

Nominal Overall Diameter ................. 129 mm
Nominal Voice Coil Diameter .............. 25 mm
Magnet Weight ............................... 380 g
Flux Density................................... 1.10 T
Weight ......................................... 1.00 Kg

ELECTRICAL CHARACTERISTICS

Nominal Impedance........................... 8 Ohm
Musical Power ................................. 60 W
Rated Power  .................................. 30 W
Sensitivity @ 1 W, 1 m ....................... 91.5 dB

THIELE-SMALL PARAMETERS

Voice Coil DC Resistance ........... RE 6.00 Ohm
Resonance Frequency ............... fs 125.0 Hz
Mechanical Q Factor................. QMS 7.48
Electrical Q Factor................... QES 0.94
Total Q Factor........................ QTS 0.84
Mechanical Moving Mass ............ MMS 4.3 g
Mechanical Compliance............. CMS 378 um/N
Force Factor .......................... B×l 4.59 Wb/m
Equivalent Acoustic Volume........ VAS 3.3 lt.
Maximum Linear Displacement .... XMAX +/-0.5 mm
Reference Efficiency ................  0.66 %
Diaphragm Area ...................... SD 78.5 cm2
Losses Electrical Resistance........ RES 47.0 Ohm
Voice Coil Inductance @ 1kHz ..... LE 0.19 mH

CONSTRUCTIVE CHARACTERISTICS
Magnet................................. Ferrite
Voice Coil Winding................... Copper
Voice Coil Former.................... Epotex
Cone ................................... Paper
Surround............................... Treated Cloth
Dust Dome ............................ Non Treated Cloth
Basket ................................. Pressed Sheet Steel

Manufacturer - SICA Loudspeakers, Italy