I'm going to let Bennett give the whole story as he knows the model numbers of all the wedges and took notes. But just to give you a glimpse of what was going on yesterday, here is a photo I took of the Sencore dB meter. We weren't really doing dB testing and this came more out of a "how loud does this go" than anything else. It wasn't any sort of laboratory test and the signal was Bennett on an OM7. The test microphone that came with the sencore was probably about 4-6 feet away and a bit off axis.
And yes, that is 140.1db A-Weighted.