that soundstream is good, check if you can see one bench tested. You can get it for less than 350$ on ebay. Ty said the nicest amp for those subs. Is your sub dual 4 ohm or dual 2. If It's dual 4 ohm, you should look viper 2400.1. Dual 2 ohm, check the one ty stated or your soundstream
go to ebay, i got the viper 1200.1d, and it makes my subs sound clean and bang. the viper is the best for the price, and it stays in the same manufacture area with the Orion H2, both made by directed. you'll be satisfied with the Viper series. U cant buy them new though. Directed Audio discoutinued production. Wire your dual 4 at 1ohm, the Viper can take it, but dont turn the gain but like lil less than 1/4th the way. it'll run that H2 at about 2000 watt rms more possibly depending on your charging system. let me know if you get the Viper 2400.1d what you think about it.