surfmuz

Responses from surfmuz

What is wrong with my system?
Audioquests was lifeless in my system too… I never was satisfied with the sound till replaced all of them one by one.  
Tidal is corrupt
Did you signed up for the service through Tidal’s student or military discount program? If yes and later your credentials wasn’t proofed the crevice could be canceled.  
Phono preamp tube rolling.
pindac, what’s your 6SN7 keepers ? For what preamp ? 
Phono preamp tube rolling.
@pindacno questions, advices of others with worthwhile experience is very valuable and of course could be implemented, but my senses and fillings r more important for me. You know it’s like advices from others which women is better for you… you li... 
Phono preamp tube rolling.
12AU7, 12AT7 and 12AX7 are pretty much the same tube with a different gain settingshttps://jaazz.me/2019/01/04/12ax7-12at7-12au7-preamp-tubes-differences-explained/amp/ 
Phono preamp tube rolling.
@chakster thank you for a lot of useful info.You right that Japanese tubes are not discovered well. It wold be interested to hear from people who tried them.   
Phono preamp tube rolling.
@tomwh The ares manual suggest that switch between 12au7, 12ax7 and 12at7 in case to play with the gain…. I did it successfully with no any problem.My priority is listening to music and I’m not really interested in deep technical details of the tu... 
Phono preamp tube rolling.
@mulveling thank you… it’s a quite impressive experience. What was following upgrade replacement for your Ares? 
Phono preamp tube rolling.
@mijostynit is always best to use the specified tube.       Could be exceptions, but I general you right…. I always return to specified tubes.  
Phono preamp tube rolling.
tomwh, it’s not odd to me…12AU7, 12AT7 and 12AX7 are pretty much the same tube with a little different gain settings.  
Phono preamp tube rolling.
tomwh, I tried to replace 12AU7 with 12AX7 ones, and it gave me a little bit more gain, not significantly, but noise increased too.. so SQ didn’t benefit from that switch.  
Phono preamp tube rolling.
lewm, I know that tricks with re stamped tubes… they use acetone to tear off original stamps and than put on a new signs. About five years ago I bought NOS rectifier MULLARD GZ34 from eBay faked like that :) fake signs just smeared off right away ... 
Phono preamp tube rolling.
@lewm NOS vintage tubes sold these days are very likely to be fakesFakes, you mean like really fakes, made faked under popular brands and models or just low quality NOS described as something very special?Yes, testers gives you basic useful info, ... 
Phono preamp tube rolling.
By the chance, did anybody tried Japanese stuff? ….Hitachi 12AX7, NEC 12AU7, Toshiba 12AX7 or Matsushita 12AX7 ? 
Phono preamp tube rolling.
@lowrider57 My experience was good.What kind of tubes did you rolled? Components? plz..outcome on best choose?