Senki nem ismeri őket? I'm from Serbia and in our hifi circles this is a well known and respected brand. Actually, they are known as best value for money for every model, it's just differences in construction and material that affect the sound. I know this because my whole system is wired with FTA ...

If I may say, this is the best tube quartet that I have tried in my push pull amp. I have tried Tung Sol, Psvane UK series, NOS RFT and old Shuguangs, and this one, to me, sounds most open, detailed and musical.

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