...nothing from 'The Past' will sound quite the same on semi-SOTA or even the 'nominal' of Now....
If it haven't been 'remastered' (which can be considered as 're-eq'd' and generally 'tweaked'), it will play like 'back when' what we listened with is generally considered....junk....with exceptions....
(Fair enough, y'all?....ok....)
The sound you seek to recreate is There.....in the grooves or the pits of the CD....but it'll take doing to dig it out....;)
Swapping equipment can drain an account as fast as a divorce.
Consider some simple room arrangements with easy to do acoustima'...drapes, rugs, pets....
Take as much time as you'd like to consider what and how to proceed.
Maggies' tend to like power, carefully applied.
Ohm ratings become a religion.
'Upstream' equipment can spark multi-page 'discussions' here. ;)
Oh...Have fun, since that's the basic premise....