Whenever I want to hear some Doors I usually end up going with the
Best Of The Doors quad mix (pick up
The Singles Blu-ray if you haven't already!), but I do disagree with some of the tracks chosen for that compilation, particularly "Who Do You Love" and "Take It As It Comes". So I do occasionally revisit these discs to hear favorite tracks like "Peace Frog", "L.A. Woman", "The Unknown Soldier", and "Waiting For The Sun".
I think the problem with these mixes is there's just too much going on in the center channel- many of the songs feature vocals, the entire drum track, and bass almost exclusively in the center channel. I found this interesting
interview with Bruce Botnick from 2015 about these surround mixes, and he does actually address his use of the center channel.
Mettler: So what? Some vocalists, like Mick Jagger, have said they don’t want their vocals isolated in the center channel for various reasons; they don’t want to appear too naked.
Botnick: If there are drums and other things in there, you shouldn’t have a problem. If all you’re doing is putting just the lead singer in the center, then you’re in a little bit of trouble.
Sounds like he threw other stuff in there
just to avoid having solo vocals in the center SW-style, which doesn't really make sense to me. It's possible in some cases that the drums were originally recorded as a single mono track, but for me those wild old quad mixes with the drums in one rear speaker and the bass in the other like Sly's GH or Tower Off Power work so much better that this.
If you have both versions, compare the 5.1 "Love Her Madly" with the old quad. The drums seem so much narrower in the new mix.
5.1 DVD-A:
Quad Blu-Ray:
As others have said, the first two albums aren't very discrete due to multitrack limitations. The rest are generally sparse in the rears until the occasional sudden burst of a keyboard or guitar, but I'd hardly call from
Waiting For The Sun-on "ambient". There just aren't many songs that have all channels equally busy with discrete info.
For me
Morrison Hotel is the standout disc- it's a very aggressive "four-corner" style mix. The song "Land Ho!" is particularly wild in surround with the violin part isolated in the rears and the guitar fills alternating from each rear speaker. "Waiting For The Sun" is even more of a powerhouse with Manzarek's keys in the rears and even some 360 panning on the guitar solo.
Not sure what this set is going for these days, I found mine (small box version) in a record store for $70 about five years ago now. It certainly does sound great, but the surround mixes are overall hit-or-miss and IMO inferior to the old quad. I'd give it an 8.