Hi guys,
i've gone around testing but haven't made any conclusion.
The funny thing is like this, when i went to this store they make a demo with exchanging the tubes, some ot them they use 'telefunken' to replace the 'russian tubes' (they said for the input) and some 'western - what' to replace the 'yugoslavia - made', suddenly the sound improve, i don't know if my ears or it really happens.
Do you think it's a good idea if i go for tubes...
I mean changing the tubes....