12fv-12          
general specifications
nominal diameter 12 inch      
rated impedance 8 ω      
power handing capacity 190 watts    
sensitivity 1w,1m 95 db      
effective piston diameter 262 mm      
voice coil diameter 51.5 mm   2 inch
thiele-small parameters
resonance frequency fs     48 hz
dc resistance re     6.5 ω
mechanical q factor qms     3.16  
electrical q factor qes     0.38  
total q factor qts     0.34  
bl factor bl     16 tm
effective moving mass mms     54 gr
equivalent cas air load vas     84 liter
effettive piston area sd     0.054 m2
half-space efficiency eff     2.35 %
airgap height hag     8 mm
voice coil height hvc     15.0 mm
voice coil over-hung xmax     3.50 mm
physical information
basket black stamp steel    
magnet type,size odxidxh(mm) 156x80x20 ferrite  
voice coil former asv        
voice coil material copper wire      
cone material pulp paper      
surround treated cloth      
spider cotton blend polyester  
dust cap pulp paper      

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广州市悦声音响器材有限公司

020 86768111/86760438
中国 广州