Knowingthe difference between CL2 and CL3 speaker wires could be the first step. This is where the voice coil comes into play. Once electrical signals are sent through the speaker wires, then the voice coil comes into play. The voice coil acts as an electromagnet which turns into a magnetic field. ProductDescription. Titanium Magnesium cone 3 Inch voice coil Dual Nomex spiders Lead wires woven in Spider Power Range (W RMS):800 Impedance (ohms): Dual 2 Sensitivity (dB SPL): 90 (2.83-V input at 1 meter) Freq. Resp: 22Hz - 250Hz (3dB) Diameter: 10 Inches Depth: 5.43 Inches. Producthighlights: single 4"x10" 2-way speaker. pulp composite woofer cone with Santoprene surround. dual voice coils for 2-channel operation. dual silk dome tweeters. handles up to 90 watts RMS (160 watts peak power) frequency response: 43-21,000 Hz. sensitivity: 87 dB. top-mount depth: 1-3/4". Allspeakers have a measurement of resistance, called impedance which is measured in ohms. Car stereo speakers are typically 4 ohm. You will find car stereo subwoofers in a variety of configurations like single voice coil 2 ohm, dual voice coil 2 ohm, single voice coil 4 ohm, and dual voice coil 4 ohm. Vay Nhanh Fast Money.

difference between single voice coil and dual coil subwoofers