I'm looking at a pair of JBL S-38s to replace my current S-26s (and move the 26s to the back, to complete my 7.1 setup ) My question is - how do the S series hold up to the S-II series? The S-38-IIs are a bit cheaper, from what I've seen, and the S series are getting harder to find. I know the S-IIs have a re-engineered port, and a protective plastic over the tweeter. Has anyone done a side-by-side A-B comparison? I can't find any local retailers that have both models.