yes, dual 2.... rms on this woofer is optional, cant really say what its breaking point is, but i did see what happens when you strap 2 z1's to one... dd rates it a 6k peak 3k on music and 1500 rms whatever that means, but if your throwing less than 6k and have clean power, the woofer will handle it, no problem, i once had a splx and it was ok, but do to problems with people who are offering trades, i have to say now, no trades will be considered