well i have abudget cad cost me about $7 and i have it wired o my sharp stereo system , cant remember the wattage but it has two big speakers i can tell you that
ive got my comp (see sig) and a yamaha RX-V640RDS amp mordaunt short 906 (front pair) 905c (center) 903s (rear pair) 304 (rear center) and 308 sub plus with about £80 wire connecting the lot together
all in all its makes a very good entertainment system
I have this speakers Logitech X-230 and in my opinion they sound great in a small room. So good as I was about to buy a home theater system for my 55" TV but just purchased a adapter now. While playing Gears of war that sub shakes my room on heavy gunning scenes.