I finally received my pair of 407s today. Sadly yesterday I fumbled one of my Lambda Signature drivers and tore the dustcover really bad but the other driver had a small hole in it. They never sounded good compared to my other pair
so now I will leave my good pair alone. I would take the Lambda Signatures over the 407's. My hearings not to good today after flushing ear out but the 407s treble is harsh and everything seems forward. There is more punch in the bass
but does not seem as detailed. It may have a lot to do with the much tighter clamping on the head of the 407s. The Signatures were just makes all songs more pleasant good recordings bad recordings everything just sounds good. 407's
not so much but maybe they just need time. Something they are not going to get with me as Lambdas. Here is a couple pictures some of you are going to find very interesting.