Why some preamps does not play music? Cold?


I mean technically/electronically wise, why some preamps while been very revealing and very good in reproduction of frequencies and extensions, are at the same time not engaging musically and emotionally and even boring? Are there a solutions to fix that (except for changing preamp)?
dvavc

Showing 11 responses by dvavc

P.S. Guys, this is pure technical question. I'm not asking which preamp does it all, so please no preamp recommendations!!! I just want to understand what is causing said phenomena, that is it.
Thank you for understanding.
mattmiller I didn't mean you, but was talking generally, for the future. I don't want dealers turn my thread into advertising platform as it i happening here every day.

No, they are tube. BTW, in that respect i'm talking about it does not matter tube or SS, but i had in mind tube pre.
"Slow"... Hm... It is interesting... I’d say might be not exactly "slow", because it might have swing at the same time, but most likely wrong PRAT, that screws original melody, therefore depending on music played it varies from "Ok" to "bad". Hm.. Yep, thats probably it. In this case i guess there is no fix for that except for new preamp.(((

I appreciate the answers, didn’t even bargain for that deep level of technicality and psychiatry.))) I was hoping somebody just to say "go ahead re-solder this capacitor and everything will be OK". - that level of technicality) However, I’m afraid I didn’t express myself clearly enough and thereby mislead the public here). I have five preamps, but said issue persist only in one out of five. This one (tube pre), INHO is, the best (out of five) sounding preamp in terms of extensions, transparency, clarity etc. "Foot tapping" is also non-issue, i.e. plenty of that. However, as it most apparent on complex, avangarde jazz pieces (Kith Jarett, Jan Garbarek, Chick Corea etc.) it looses musical connection (?) It does it on any kind of music, but on regular music it is less obvious, because it still have enough "melody (?)" left to connect sounds into music(?). When switched to any other, out of 5 preamps, (cold, SS or whatever) which BTW, have less of extensions, clarity etc.,, the music comes back. So, the correct word is probably musicality not emotional engagement? I don’t really believe (for whatever it worth))) that any distortion has anything to do with this issue, cause like i said other preamps most likely have more distortions been not as clear and transparent as the one at issue.Just wanted to clarify the issue, to bring everybody onto the same page.


phd: "Some preamps are more accurate then musical, maybe that’s the case here." Sounds more like it.
I tried different NIB tubes, both Sylvania though, while it did changed tonally, the issue complained about remained. I will try some other brand. However, it is 6sn7GTB therefore not to much choice to play with, unless try not GTB but that, as i understand, not recommended. Theoretically, are tubes in power supply might cause that?
Guys, thanks for your time and thoughts. 
georgelofi, I thought we are all in understanding that "NO PREAMP RECOMMENDATION" on this thread. Moreover, if you read my responses you will learn that I already have 5 preamps, all of them are active, SS and tubes, but only one of them(tube) causing the issue which I’m trying to resolve here. This thread is not about "the best preamp". Moreover, been 20 years in this hobby I tried for a zillion times "strait wire" source to amp, as it was suggested here by many for many times, to be the best way. Guess what, i can’t stay that sound for more then 5minutes, because that sound is total chaos and mass, "all over", unbalanced and causes fatigue (in my ears at least) in 3 minutes. Once again, here, I’m trying to get an answer whether i can illuminate very specific issue in my otherwise favorite preamp.
Thank you again for understanding.
atmasfere: as a matter of fact, those Sylvania which i have currently installed are extremely microphonic. Are you suggesting it might cause the issue i'm talking about?
knghifi: "It’s very possible ... GZ34 family?" Yep. Russian. You really believe it might cause the problem at issue?
Tks, will try that. Metal Mullard GZ34 ridiculously expensive. Non-metal too.))) (((