I would recommend listening with Hairy Hen's excellent restoration. The 2004 mix is frankly terrible. It's severely lacking in treble sound, with a low droning bass noise, and a muffled compressed sound. There is no dynamic range except for when the sound effects are cranked up for selected shots, often drowning out the music. In comparison, the 70mm has lots of dynamic range.
Here's a comparison of the two mixes:
http://www.mediafire.com/?avv1d8izol8hy3t