Zeroflex EVO-15XXL 3500RMS Car SubwooferZeroflex EVO 15XXL 3500 RMS Car Subwoofer The Zeroflex EVO 15XXL 15 inch high output car subwoofer is engineered for extreme bass performance, making it ideal for competition builds and serious high power audio systems. With a massive 3500W RMS power handling, this subwoofer is built to handle sustained high levels without compromise. Featuring a large composite cone with increased surface area, a heavy duty white cast aluminium basket, and advanced