I need help from the resident pros and the semi-pros. I have used AVIA for home theater with my 7.1 system run by 950 with good result.

I need something like that for my 2 channel system with subwoofer(s). I have gone to actively crossing over and need a software/hardware system for feedback on dialing in x-over frequency, placement, etc. Only other tools I have is an anolog sound meter from Radio Shack and an old "pro" quality microphone with standard stereo plug.