http://cgi.ebay.com/Soundstream-Gran...2%7C240%3A1318
http://cgi.ebay.com/ws/eBayISAPI.dll...m=220326792333
If you don't mind buying something used. Any of the Soundstream amps that look like these are absolutly awesome. If you can find what your looking for and it's an older Soundstream, don't hesitate. The older ones look like the ones in the links above. Blue anodized, small heat sink fins.
Used to compete with these in the early 90's. They are incredible, versatile, way more power than they claim. The new Soundstream is not the same company. Man they had the best paper (pulp) subs I've ever heard.
In fact that 705 I have linked, I may try to win that auction and make a use for it.