Sure, why not. Heck, put a 100,000 watt amp on each of them. Your charging system wont create 20,000 watts daily, or anywhere near it, any more than it would 200,0000 watts.Probably. 4" Coils give the ability to handle a lot more power. They also create the need for more power to get them moving due to higher moving mass. In music, you won't be giving 10k rms anyways, so if you just put a 10k rms amp on them, they'll handle it like a champ.