Classic Records vs. Analogue Productions


I listen a lot of classic and jazz.

Because of limited avaliability I pass original releases of RCA Living Sound or Blue Note releases.

I found that for many titles there are at least few offerings from Classic records: 180g 33/3, 200g 33/3, 180g 45 single side, 200g 45 single side, and a variations with Clarity vinyl.

The Classic Records is gone so maybe not good time to elaborate how anoying was releasing another edition of the same title on never format that not necessery was better all the time.

I found that many titles released before by Classic Records is now reissued by Analogue Productions - many of them on 2x 45 RPM format.

So the question is - what is an ultimate reissue soundwise?

Classic Regirds single side 45 (clarity) vs. later Analogue Productions 2 x 45 RPM pressed at QRP.

The titles I am interested:

Brubeck Time Out
Adderlay somethin Else
Rimsky Korsakov Scheherazade
Saint Seans Symphony no 3 Organ
All Reiner at RCA.
milimetr
I am curious if it is worth to get 2x 45 AP when I have 4x 45 180g from Classic.
All I can offer to this is that I am not replacing any of my 4-sided RTI pressing for the new QRP 2-sided pressings. Two reasons: 1) too much other really good music that I want to add (e.g., the Yarlung vinyl issues) and 2) the WRP pressings must be from later generation stampers so we're getting further and further away from the cleanest stampers possible off of this metal work.
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Does the stampers for the same title one single sided 4x45 RPM and other double sided 2x45RPM are the same?

I thought that CR and AP may use the same master source byt the stampers are new one for each pressing...
Without looking at samples of each, it's not possible to say for sure. But there is no reason they'd need to be different. My guess is that they are the same. Analogue Productions bought all of the assets of Classic Records and so has the stampers and other metal work. They can certainly make new stampers from the mothers, but each iteration entails a slightly less fresh mold from which the stampers are made.
Not to diss BG, Hobson, or Chad, but I have found that in virtually every
case where I have an original early pressing and the Classic, the Classic
remasters sound brighter. More 'detail,' and more 'audiophile' but less of a
piece. I appreciate that the OP doesn't want to search out or pay the tariff
for the originals, but if we are talking 'definitive' versions, I wonder what
others' experience is?
Whart, if you're referring to RCA Shaded Dog originals versus the 45rpm reissues from Classic Records and Analogue Production, my experience is that there is no comparison - the 45rpm reissues are just so much better.

I've listened to a few of the newly released 33rpm reissues from Analogue Productions, and they are also significantly better than the originals and more comparable to the 45s.

When I think of what the master tape must sound like, I think I'm getting much closer to that sound with these than with any of the originals Shaded Dogs.

If you're comparing to the Classic Records 33rpm reissues from a decade ago, then it's very much a mixed bag.
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