Apopira, I haven't updated my system in two years. I was mixing and matching stuff a lot and I really did not have a steady system. What I have now is a cheap dvd player, hard drive+ Cal Labs Sigma ll DAC, Naim Nap 150 + Naim 112 and the Harbeths. I am builidng the system around the Harbeths. I am thinking for amplification on a Lavardin IT or a Leben 300 (the Naims are pretty good but I want to explore) and for cables maybe the Signal Siver Resolution.
Regarding the bass and mid range, I love strings and my two favorite instruments are the cello and the double bass, since I got the speakers I find myself listening even more to music that features these prominently. The sound is full bodied and I don`t need a sub.
Going back to compare the HL5 and the Special 25 they are probably closer than any two speakers that I have ever heard and I don`t think that you could go wrong regardless. But In my case and for my biases this is the best speaker that I`ve owned (and I am keeping them for good) with the Special 25 in second place.