Yes, you'll be fine.
I have my doubts your amp will put out that much power anyway. I don't remember Sony amps to be CEA compliant, and if they're not then it's anybody's guess as to how much power it really pushes. Max power ratings are pointless in my opinion.
Don't worry about it. A lot of people give their subs a little more power than their rated for. Set your gains where you don't clip the sub, and enjoy it!