Now listening to Shostakovich's Fourth Symphony, as heard in this 2-LP set:
Like the DSCH albums above, this music originally was recorded for Melodiya in the Soviet Union and then subsequently licensed for release in the U.S.
I have it. Sounds OK to me. Comparatively speaking, I've heard plenty of records with much more heavy-handed filtration.
OTOH, my 50-something year old ears ain't what they used to be . . .