Hey bass crazy, that's not much power for a sub. Anyhow, you can try any 200W - 300W rms amps from RF/Kicker/JL/JBL/Audiobahn/MTX. The cheapest one on eBay is MTX6500D. It's 500W rms @2ohms.
Hey Bass, as long as you have self control, it won't blow your subs. Besides, its better to get stronger amp over subs cause most amps will distort never their max setting. This way you'll be able to get clean 225W easily without clipping.