You would probably blow up your ears first, ha! Having more power than normally required is far preferable to being under powered where clipping of the amp can & will damage drivers.

You will be fine as long as you don't go stupidly loud beyond the limits of the speaker - that would be stupidly loud. Besides, your subs will carry much of the load by contributing a ton to the overall sound field thus relieving stress on the sats...

TAM