I guess as you can tell, LCD2s are not my favorites (but I gave them a real try, even getting XLO cables which helped a lot for me over the stock cable; I even find them comfortable in their own way).
It's a different kind of brightness, but there is some unevenness in the upper mids that causes an upper-midrange note like a female vocal to stand out and bloom and be forward, siren like
that annoys me. A sustained higher-pitched vocal seems to linger longer than normal, with a hint of shrieking, as opposed to the T1s, where it comes out of the surrounding blackness and is gone, which
is more realistic and more appealing and not painful at all.
Yes, the Zeus-Hex22-T1 is also very fine and even more liquid on the RSA B52 (using upgraded tubes from Telefunken & Bendix).
EQ has not worked for me. It does address the sibilance, but resolution suffers, especially in the bass.
Try listening to as Hi-Rez recordings as you can get, either SACD or computer-based. Hi-rez seems to have much less digital glare than than regular formats (it sounds more analog).
Of course you could always get a turntable :)