I have the tools available to me to create a test CD to test audio frequencies in your sound system.... I can create just about any sound ranges you could want.... I need this for myself, but figure I could make it available to everyone, if interested. What I would like in return is ideas on how to make it to suite these purposes best.... I'm thinking of creating a decent number of test ranges, like 50-150hz, 150-300hz, etc. This way, you could reference the track number to see what frequencies are too loud, too soft, or non-existant.... Any ideas? Any advice? thanks!