Its simple to do, there's settings on there which can be accessed from the main control unit, one of which is "boost". Turning this up to the max, along with other settings can help you get to 1000watts. There's no risk of the speakers setting fire to themselves (funny image
) neither is there a risk of them blowing. I remember reading a thread on the logitech forums about the Z5500's, and logitech said that the Z5500's components can take upto 1100w until getting damaged, so they only let you get to 1000w as a safety barrier. In reality terms, you wont need to use the 1000watts all the time. The only time i ever use it is when we have party's. My GF also mess's with it to and turns it upto 1000watts without let me knowing, so i turn it on and deafen my self 
. The thing that really impressed me with these though was that even with the bass turned to max, and the volume to max, you cannot get these to distort! The only thing i would reccomend though, is replacing the wires with platinum plated ones. The ones that come with it are still really good, but platinum ones, while being expensive, give even crisper sound.
