Keep in mind that most vinyl was released from production reels which were lower quality than the master reels. New vinyle "remastered" releases are from master reels. I'm getting back into vinyl myself as analog (tube power amps). I've noticed major differences with vinyl, for example, most jazz and classical vintage releases seem to be better pressed than commerical pop/rock LP's. Sometimes you can find a good "half-speed" mastered vinyl release that is good; if you are into classical and jazz you can find a "direct to disc" LP which is also high quality.
I believe what you will hear is the RIAA standard equalization curve which was a industry standard for american released vinyl. I think you will also benefit by using high quality preamp and certainly a tube based power amp to reap the true benefits of vinyl. I do know of a very good reputable dealer of Dynaco ST-70's on ebay if you ever want to know; I'm using one and it's simply incredible. What I like about the Dynaco's is the parts are still available and they can be fixed if there ever is a problem, more than I can say about new solid state amps. I've had 2 Sony ES AV amps go down in 8 years just outside of warranty , great for sony, terrible for me. I'll never go back to solid state not only becuase of the sound, but the reliability in general. There are some good brands like Adcom and NAD from the early 90's and 80's. Mid 80's was the best for solid state.
good luck,
Donnie L.