Hi i have 2 subwoofers from my car i have sold on, the Kenwood is 500 or 600Watts not sure and the Sony Xplod is 1300Wattsboth are 12 inch accross (not including box, just the speakers are that size), i also have an amp but im not sure if it is working but its there too. I am wanting to swop them for a psp/vita or why, email me or txt me with your offer. Thanks