I just picked up a pair of JBL N26II. I really am diggin them....especially compared to the Aiwas that they are replacing. What I am wondering about is this, how much difference is there between the series I and II. I am thinking about returning the N26II and popping for some N28 series I on Ebay. I have noticed them at a fairly good value. So, the two questions here are: 1) Is there any significant difference in series 1 and 2 2) Is it worth the hassle to step up to the 8" woofer? (I think that this question is obvious, I am just looking for others' opinions on these speakers.) Thanks in advance.