Took my first measurements this morning. I'm pretty happy with what I am getting. This is using a RadioShack condenser boundry mic, has fairly flat response from 20hz-18khz.
*I do not have an SPL meter handy so the vertical scale is not calibrated..... but it still shows the response properly*
Sorry it didn't look more like Jims prediction //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif