Speaker Voice Coil Speaker Parts 1)Bobbin Material: AL,ASV,KSV,Capton,Glass- ... 2)All models and sizes Speaker Voice CoilSpeaker Parts1)Bobbin Material: AL,ASV,KSV,Capton,Glass-fibre,NSV ... speaker voice coils according to your requirements. Speaker voice coil bobbin materialAl, ASV, KSV, NSV, Kapton and Glass-fiber ... ",1.25",1.5",1.75",3",4",etc)bobbin Height2.5mm to 48mmresistance4 - 150 ohm wire layer2, ...