Re: Calibrating measurement mics.
Search ebay, because there's plenty of acoustic calibrators for sale there, some pretty good for the money! You can always send it in to get a current calibration. Just recently I got myself a Quest Type 1 calibrator for $60!!! I had it sent to Harry Brill, and he turned on his lathe several mic adapters for a very reasonable price to fit all my different test mics. I'm still waaaay ahead of buying a new calibrator for hundreds of dollars more!
I haven't sent my calibrator in to get it calibrated, primarily because it's only a dB or two off from a known standard that I compared to, which is good enough for my books and for most of my Smaart work. I also keep a Simpson and a Cirrus calibrator handy in case my Quest calibrator doesn't work, but really I don't forsee that happening anytime soon, it's a pretty solid device!
If I do find the need to produce legally binding measurement data, then I'll budget for renting the correct, calibrated gear and do it right.
