Sorlowski,
I am currently using the Sovtek KT-66(about $50.00 per match pair at tubestore.com in which I have no affiliation whatsoever)that Mick recommended to one owner here which he shared on this thread a while ago. It needs to play at least 50 hours before it shows its real character. With the RC VT-231, Mullard 5AR4, and TFK 6922 plus Mullard M8080 on the phono, my preamp never sounded so good. At least to me of course but I am very impress how the tonal balance becomes so natural in my system with this tubes as regulator. I have compared it to Sylvania 6F6G's which I thought the "it" tube for me, Tungsol 5881, RCA 6L6GC Black Plates, GE 7581, and GEC KT-66 Brown Amphenol base(the only two I have left) and I like the Sovtek better.
Do not make any conclusion about this tube's ability until about 50 hours as I mentioned, after that it gets even better.
Of course, you can take my post with a grain of salt. I am just sharing my findings that's all.
regards,
Abe
I am currently using the Sovtek KT-66(about $50.00 per match pair at tubestore.com in which I have no affiliation whatsoever)that Mick recommended to one owner here which he shared on this thread a while ago. It needs to play at least 50 hours before it shows its real character. With the RC VT-231, Mullard 5AR4, and TFK 6922 plus Mullard M8080 on the phono, my preamp never sounded so good. At least to me of course but I am very impress how the tonal balance becomes so natural in my system with this tubes as regulator. I have compared it to Sylvania 6F6G's which I thought the "it" tube for me, Tungsol 5881, RCA 6L6GC Black Plates, GE 7581, and GEC KT-66 Brown Amphenol base(the only two I have left) and I like the Sovtek better.
Do not make any conclusion about this tube's ability until about 50 hours as I mentioned, after that it gets even better.
Of course, you can take my post with a grain of salt. I am just sharing my findings that's all.
regards,
Abe