So the responses here have far exceeded my expectations and I want to thank everyone for the insights. My own journey is now going to split into a couple paths.
First, based on the responses, I think there's an opportunity to mitigate the impact of what I think are poor recordings (& my crappy room) while still being able to enjoy the clarity and wonder I get from it on great recordings. The first step there - again from your advice - is exploring some sort of easy on / easy off equalizing (& room compensation) and do that in the digital realm.
Secondly, it's obvious that everyone thinks my analog setup is prehistoric - a lot like their owner. So I plan, after step one, to work through that chain starting with the cartridge,tone arm & their precise setup. Makes sense, I have over 4,000 records to enjoy. I did, as was suggested, relocate the speakers and it does sound richer and more "complete"...thanks for the observations...will continue tuning that - cheap and fun.
On a final (?) note, Onhwy61 asked me what recordings didn't work for me. Made me stop and think. So last night I did a little experiment (CDs only cause they were quick and convenient), rather than digging out just ones that sounded bad (definition being thin or lifeless or less than "there", whatever), I tried to pair them with similar recordings that did work for me. Sorry about how old these are . . . but then so am I.
It was a great exercise and among the things I learned was something several of you suggested, as my system gets dialed in (speaker placement in this case), some of the "bad" recordings got better but some also got worse. Sorry that I don't have the vocabularly to describe the sound any better. In any case, for those of you into self abuse, a few are below...oh yes, for argument's sake, the best recording I own is at the end . . . in my opinion, 'course.
Cheers, Dancub
Solo Guitar
Bad - Sharon Isbin's "Nightshade Rounds" (thin/flat)
Good - Leo Kottke's "Mudlark" (full/rich)
Yes, I know, he's a big 12 string guy, so I compared his 6 string work. On the other hand, she's a terrific player and is using an '88 Humphrey Millennium - pretty good tool.
(Old) Rock
Bad - The Rolling Stones "Hot Rocks"
Bad - Los Lobos "How Will The Wolf Survive?"
Good - Los Lobos "Colossal Head"
OK, there's no excuse for a "Digitally Remastered From Original Master Recordings" thingee by the richest group of old rockers on the planet to sound like it was recorded in a toilet with a Walkman. Interesting - Los Lobos, who one would think has pretty much total control over their stuff, would allow some of their best music to be published poorly.
Classical
Bad - Nigel Kennedy "Vivaldi, the 4 Seasons" (EMI)
Good - Alondra De La Parra - "My Mexican Soul"
So I love Vivaldi but this one sounds like someone forgot to flush. Nigel ought to call Alondra and find out who recorded her production...it's terrific.
So the best recording I own?
Siris Svale Band's "Blackbird". CD or vinyl - both terrific. Great music and wonderful recording. I first heard it in Joseph Audio's demo room at a Stereophile show. He won the "Best Demo" sound or something like that that year and I suspect "Blackbird" was his secret weapon.
So why don't one of you guys start a "best record" thread? Or is there one? If there is, shoot me a link. Thanks.