Marakanetz, have you ever actually TRIED IT? Not just on one particular tube, but on many different ones? I'm not claiming that they all ring like a bell, only that they do in fact have SOME microphony and that it varies a lot depending on the type of tube. As you would expect, it is usually most obvious in high-gain small-signal applications (phono stages, preamps, input tubes) rather than big output tubes. And if this issue has been fully resolved, why in the world would anyone want tube dampers or fancy platforms to set their tube preamps on? It would appear that you have unwittingly already taken my advice to heart:)
Weird ring/thump noise when I hit my speaker cable
Help please! I noticed a weird problem which I can't explain for. I hope somebody can tell me what's wrong. When I use my finger to flick at my left speaker cable, my left speaker will produce a short ring/thump sound in time with my flicks.
When I switch off my amp (Unison Research Unico), the problem will immediately disappear, and won't re-emerge immediately after I switch on the amp again. I haven't noticed a pattern of when the problem emerges - sometimes it's there and sometimes it's not.
The sound is also produced when I use my knuckles to knock my hi-fi rack (although not quite as loud as when I hit the speaker cable directly).
I have only noticed this problem when I recently bought the Unico and not before with my old Roksan Kandy. I was wondering whether it's due to one of the tubes having some loose parts that react to the jolts. But then the problem should be there all the time and not only some of the time.
When I switch off my amp (Unison Research Unico), the problem will immediately disappear, and won't re-emerge immediately after I switch on the amp again. I haven't noticed a pattern of when the problem emerges - sometimes it's there and sometimes it's not.
The sound is also produced when I use my knuckles to knock my hi-fi rack (although not quite as loud as when I hit the speaker cable directly).
I have only noticed this problem when I recently bought the Unico and not before with my old Roksan Kandy. I was wondering whether it's due to one of the tubes having some loose parts that react to the jolts. But then the problem should be there all the time and not only some of the time.
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- 10 posts total
- 10 posts total