Well you can checkout my original review from last yr on the old thread at post #8596. That was before I came across the Single Wire Getter Post Versions. From my comparison to the OGs I had - the '75 Voskhod has a deeper, richer bass, also much greater detail, a more natural tone. They tend to have a quieter nature, a blacker background, especially when the volume is high.
I think others have posted similar comments, not many have had the '75 plate post to compare, maybe the more common '80s Voskhods. Certainly the very best 6n23p the 'Holy Grail' '75 SWGP Silvers and '74 SWGP Silvers are in a class all by themselves.
Me, Gmahler, and others have been searching for these '75 Plate Post Gray Shields for a long time, they're very rare. I doubt any of the Russian dealers have any. There was even a Head-fier in Russia who couldn't find any on the local message boards.
Although I did recently recieve one in a large batch that came in on Monday. It broke my heart when it failed testing. It had good ouput, but failed the gas emissions test on one section. Basically worthless!
So sad. As I've said before buyer beware when dealing with these Ukraine, Moldovian, Russian dealers.