I wasn't that scientific, but I just wanted to get some rough results... I tested the amplitude/sensitivity of the mics by just recording some x-mass music and running the statistics generator on the resulting waveforms. For the frequency I recorded two tests, one of the x-mas music and one with the CEP tone generater. I used the "out of control" preset. Both mics gave similar results... Thanks for the suggestions Chris, perhaps I'll give them some more proper tests soon..
Anyone see anything in the karma's that could be modified? I like how they sound enough that I would be willing to throw some more money at them. This is my second pair, I only bought this pair because they are on sale for dirt cheap. The paint easily comes off the bodies and so does the Karma emblem. I am going to sand them down and get them powder coated with some glow- in the dark paint!