www.youtube.com/watch?v=sVP5vsUe0kY

Each roll on a typical subwoofer spider has a uniform height but because the center area is subject to increased stress when for example, a subwoofer's excursion is especially large - this area can become stretched out, leading to breakage in the spider and limiting higher power handling. However, Kenwood's new spider roll gradually becomes higher towards the center, enabling this area to withstand more stress with less stretching. The design goal was to gradually transfer up-down movement outward to reduce stretching in the center area. As the spider's outward portion has more surface area to better dissipate stress from the center, this helps to reduce mechanical damage during increased excursion and enables the subwoofer to withstand more power.

Kenwood kfc w3011 outer plastic ring    US $10.00

Kenwood KFC W3011 12 1200W 4 Ohm Subwoofer    US $69.99

Kenwood KFC W3011 1200 Watt 12 Inch slightly used    US $35.00

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