Can't say I knew a lot about the guy but I've heard the name mentioned a lot since I started getting interested in audio production, and I've come to understand he was a legend in the mastering world.

http://www.analogplanet.c...ug-sax-has-passed-away

I am very sorry to hear this sharke.  
 
I met Doug Sax when he mastered Sue Saad & The Next at The Mastering Lab in L.A.
http://www.discogs.com/Sue-Saad-And-The-Next-Sue-Saad-And-The-Next/release/1264638
 
He was very patient with me and showed me his techniques which included two sets of EQ and limiting before we burned the mother nickle plate.  A few masters were then made from the mother plate and they were used to mass produce the LP's. 
 
He was a great guy and had a profound impact on LP mastering back in the day.