I've listened through most of RotJ on my PC with JBL Control Studio fronts and Asus Xonar DX audio card (sorry, but I just don't have my home stereo system available at the moment, and I was forced to use the PC). I use Foobar2000 player (usually with DynamicRange compression mod, although I also heard the remastering without it, just to avaoid any sound disturbance). I make it all clear just to note that I haven't used a proper audio system, still a decent one.
Let me begin with the (small) critisism - there was some background noise on a few tracks. Not very much, but I could hear it in the quieter sections, interrupted by the heavy brass(?) instruments or by violin(?) solos. Another issue is that the player I'm using shows all tracks as "unknown". Once I have home audio I'll test it again, but can anyone please check if there's problems with PC's reading the audio file desriptions (author, track title/number and so on).
This is definately a (very) small issue, though.
Now, to the point. Overall, this was excellent... no, amazing even! The clarity of the instruments was astounding. The Anthology set I have sounded kind of muffled, yet now I can hear everything, even quieter sections that I couldn't in the original releases. I love the trumpets, man... they were my favourite parts from the RotJ OST and the Anthology ones sounded somewhat distorted, and overly sharp. Now they are excellent! Towards the end of Track 6 ("Into the Trap" on the CD cover) there's a "clicking" instruments, reminiscent of the Empire musical cue in the Battle of Hoth, it's just amazingly clear now. Seriously, I'm listening to the Sail Barge Assault and Into the Trap/Main Reactor titles for the dozenth time now, and I can't get enough. It's very hard for to give a detailed review, because I'm an experienced listener, yet I'm not an expert on music, and I'm not sure of the English names of many musical instruments.
All I can say is that never since watching RotJ in the 1990s in cinema for the first time have I heard the soundtrack again, with such power, beauty and complexity. Until now.
Thanks for this remaster, and thanks to those who bumped the thread!