I bought my Sig IIs in Feb, 2008, shortly after they came out. The midrange was a bit veiled but I was pretty much able to cure that issue with a cable upgrade. They are coherent speakers; I would *not* say the midrange doesn't blend well. I am very happy.
That said, the newer versions are supposed to have several improvements since I bought mine (I spoke to RV @ RMAF 2011), most notably the tweeter and midrange drivers are identical to those found in the Quatro and (I think) 5A. I haven't heard the current production but, if I were buying and had the $$$, I would get current production.
That said, the newer versions are supposed to have several improvements since I bought mine (I spoke to RV @ RMAF 2011), most notably the tweeter and midrange drivers are identical to those found in the Quatro and (I think) 5A. I haven't heard the current production but, if I were buying and had the $$$, I would get current production.