W100S
The Visaton W100S is a 4-inch (100mm) woofer speaker with a closed box design. It is constructed with a die-cast aluminum basket, a copper-clad aluminum voice coil wound on a Kapton former, and a pressed-paper cone. It has an integrated rubber surround, VAS suspension setup, large roll spiders, and high-temperature adhesives. The rated power handling is 90 watts, and a 4 ohm impedance. It has a frequency response of 55 Hz – 4200 Hz, a sensitivity of 88 dB, and a resonance frequency of 58.7 Hz. The weight is approximately 0.65 kg/1.43 lbs.