Speaker Voice Coils By Rollet Industries

We have developed the finest voice coils in the industry. Nearly all type of Speaker voice coils incorporate a polyimide film, specially formulated to quality Speakera s specifications. Our proprietary film offers significant advantages over other materials including aluminum, which can conduct excessive heat to the cone apex. You will find very few thermal failures . We currently product 1 layer edgewound (for very high performance PA and MI), 2 layer (for high performance Pro sound), 4 layer (for car audio and hi-fi), dual (also for car audio and hi-fi) and dual-parallel coils (for special applications). Winding lengths vary from .210a (5.3mm) to 1.5a (38.1mm). Standard impedances range from less than 1 ohms all the way to 70 ohms.