Welcome to the Forum and congrats on procuring your Crossfire. There's a lot of info to be found here, search, ask ... sometimes we're brash, sometimes we're not so brash.

First thing I'd do is look up the thread that talks about "Biggest Bang for the Buck" in the audio thread on the forum. It's a simple modification that will breathe new life into your sound system.

Again. Welcome.

and I second all comments on your avatar ...
Peace!
adoni