A little more description of differences in my system. When I had the HT PS II a couple years ago I thought it was great IC no need to spend silly money to improve, got used pair of AZ Silver Ref here (after reading all the rave reviews)thinking there wouldn't be much diff and I could resell easy enough.
First listen it was easy to hear a very noticeable positive difference, the soundstage was 10-25% bigger and I was getting all the detail like before but the overall sound was much more relaxed natural......I was hooked and sold my HT PS II.
As I said before overall tonally the HT PS II has more treble energy (but not more detail) therefore could be useful in system that tends to be too warm/rich.
As far as bass I really didn't notice a big difference between the two cables......for me both are very good in this area.