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<blockquote data-quote="John_E_Janowitz" data-source="post: 6100428" data-attributes="member: 550657">Over excursion is sure to fold the cone, not any particular power level.&nbsp; The only way to fold the cone is to drive the woofer past the limits of the surround, and to do so with a large amount of force.&nbsp; &nbsp; This is considered abuse any way you look at it.&nbsp; No I would not recommend 1600-2000W on the AV15 in a vented box, especially with no subsonic filter.&nbsp; You will be able to bend up the cone.&nbsp; There is a large difference in thermal and mechanical power handling.&nbsp; Thermally the coil will be fine with 2000W.&nbsp; Mechanically you can drive the woofer past it&#039;s limits if the system isn&#039;t carefully setup.The cones are plenty strong enough to withstand force created with their rated power under appropriate operating conditions.&nbsp; I can flip a cone upside down and stand on it without it bending.&nbsp; They are quite strong.&nbsp;&nbsp; I cannot however guarantee a woofer that is used above and beyond the stated power limits and pushed beyond it&#039;s physical limits.As BumpinBuick stated, I had considered doing an SPL woofer.&nbsp; We can go much thicker on the aluminum cones to drastically increase strength. We can do 2 thin layers of aluminum around a honeycomb core.&nbsp; Spiders we can do full nomex which is nearly indestructible and can be impregnated with a flexibilized epoxy to gain extreme amounts of stiffness, but not have the typical breakdown of phenolic resin.&nbsp; The addition of copper on the pole, the aluminum cone, and aluminum around the OD of the coil pulls heat away from the coil quickly and dissipates it very quickly.&nbsp; We can get to a point where we have extremely high thermal power handling.&nbsp; We just need to then build a driver that is basically physically indestructible as they will deal with continual abuse for SPL competition.John</blockquote>

[QUOTE="John_E_Janowitz, post: 6100428, member: 550657"] Over excursion is sure to fold the cone, not any particular power level. The only way to fold the cone is to drive the woofer past the limits of the surround, and to do so with a large amount of force. This is considered abuse any way you look at it. No I would not recommend 1600-2000W on the AV15 in a vented box, especially with no subsonic filter. You will be able to bend up the cone. There is a large difference in thermal and mechanical power handling. Thermally the coil will be fine with 2000W. Mechanically you can drive the woofer past it's limits if the system isn't carefully setup. The cones are plenty strong enough to withstand force created with their rated power under appropriate operating conditions. I can flip a cone upside down and stand on it without it bending. They are quite strong. I cannot however guarantee a woofer that is used above and beyond the stated power limits and pushed beyond it's physical limits. As BumpinBuick stated, I had considered doing an SPL woofer. We can go much thicker on the aluminum cones to drastically increase strength. We can do 2 thin layers of aluminum around a honeycomb core. Spiders we can do full nomex which is nearly indestructible and can be impregnated with a flexibilized epoxy to gain extreme amounts of stiffness, but not have the typical breakdown of phenolic resin. The addition of copper on the pole, the aluminum cone, and aluminum around the OD of the coil pulls heat away from the coil quickly and dissipates it very quickly. We can get to a point where we have extremely high thermal power handling. We just need to then build a driver that is basically physically indestructible as they will deal with continual abuse for SPL competition. John [/QUOTE]

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