5800w

I am looking to buy the mid-range (5000-7000 Rs.) 5.1 Home theatre system for my SONY DVD player. I am looking for Intex (5800W) subwoofer 5.1 music system. It's official site suggest that AC3 / DTS ready & Compatible with DVD/TV/VCD/CD. My DVD player has one "Digital-audio out" pin. The...