Realising that not everyone has the main channels from the 1993 laserdiscs to combine with the LFE tracks I posted above, I decided to upload my AC3 files for each film to make this more accessible for those who might be interested in it. They are all in 2.1 format, encoded in Aften at 448 kbps using all the maximum quality settings, split into several RARs. See above comments about using DTS mode to achieve surround sound if desired.
Star Wars:
part 1: http://www.sendspace.com/file/s8ngzo
part 2: http://www.sendspace.com/file/nc68mk
part 3: http://www.sendspace.com/file/xdz3x5
part 4: http://www.sendspace.com/file/rqfjek
Empire:
part 1: http://www.sendspace.com/file/0shomm
part 2: http://www.sendspace.com/file/ij36cx
part 3: http://www.sendspace.com/file/1u5q1b
part 4: http://www.sendspace.com/file/1l6eci
part 5: http://www.sendspace.com/file/hyc1gf
Jedi:
part 1: http://www.sendspace.com/file/dpyd29
part 2: http://www.sendspace.com/file/zmd91f
part 3: http://www.sendspace.com/file/7bhtmc
part 4: http://www.sendspace.com/file/8ydrdd
part 5: http://www.sendspace.com/file/pkya6l
For the most part these are straight from Belbecus' GOUT-synched 1993 laserdisc mixes. Aside from the obvious addition of low frequency effects, there are a few other changes I made. In Star Wars I replaced the cell bay shootout with the equivalent section from the 1977 stereo mix, to get rid of the breaking glass sounds, and made a small and (hopefully) unnoticeable edit to remove the sound of spitting after Luke says, "What good will it do us if he gets himself killed? Come on." When the Falcon emerges from hyperspace I also put in a few seconds of the winding/deceleration effect that appears in the mono soundtrack, derived via low-pass filter, mixed out of phase so it will appear in the rear channels. Since that effect occurs with considerable force in the LFE a few seconds later, it made sense to include it, not to mention it plain sounds cool. :-)
In Jedi, I put back the deleted music from Luke and Ben's conversation on Dagobah--ever since I first heard it I felt the scene would play better that way. As it is, they're just sitting there and Ben speaks with his distant echoing voice and the revelation about Leia being Luke's sister sort of falls flat; the music gives it back some dramatic weight--which is not a slight on Alec Guinness. I really don't know why they decided to cut the music in the first place, but I think they made a mistake. My source was ABC's remastered soundtrack (props to him for his excellent work!), resampled to 48 khz via the high quality Izotope resampling algorithm. I considered putting some deleted music in Empire as well, but that would be opening a much larger can of worms than I was prepared to deal with at present.
Hopefully my results will be enjoyable to those interested in this project! I feel that using the soundtracks I have uploaded (plus the original stereo and mono mixes for Star Wars), combined with the GOUT video processed by G-Force's AviSynth script, will yield an excellent home theatre experience for the entire original trilogy.