#3561
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While we are still on this subject and I am getting over my issues, the recommendations and individual go-to 6s_7 you all are putting forth, are those Amp or LP-27a suggestions or both?
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#3562
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Both amps & preamps. I've been rolling 6DJ8-types, 6SN7, 6CG7, 12AU7, 12AT7, and 12AX7 driver, phono, and line stage tubes for years. There can be significant differences between tubes of the same type. At other times they are so close that I can't reliably tell any difference at all.
When comparing the sound out of my Inspire amp between my "worst" and "best" 6SN7 tubes, there is a noticeable difference. With the best, the sound is more open, more natural, more space between the instruments, and is just simply more enjoyable. |
#3563
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Since you have the LP27a...both. Just trust your ears.
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#3564
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Quote:
In my amp, the 6SN7 is more subtle and allows the output tube to develop its own sound, with less coloration or interference, yielding more of what I refer to as texture and a flatter frequency distribution. Of course, these conclusions stem from my subjective assessment. In addition, I have not tube-rolled 6SL7's as much as I have 6SN7's, so there's the possibility I may find a 6SL7 which may change my mind. Last edited by Musica Amantem; 04-17-2017 at 08:09 PM. |
#3565
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Mine came with the same and I haven't felt the need to change it at all.
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#3566
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You may eventually want to try a 6SN7 or a 6SL7 in its place. IIRC, one of the reasons Dennis built with that tube is that he came across a good sized stash of NOS 6BX7s. However, before anyone goes and blows up a piece of gear, lemme double check to see if that is an acceptable substitution....
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#3567
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"Allan:
Yes, one can use a 6SL7, 6SN7, 6BL7 or the 6BX7. I’ll tell ya what .. that CV-181 from China is a real treat as well in the low impedance buffer output stage of the LP-27a or the new LP-3a Dennis" There you have it.... |
#3568
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Which means, 6BX7 GT can be replaced by any of those input tubes (these are all octal). But, the 80 rectifier in my LP-27a is 4-Pin, so would I need to use an adapter to replace it with the CV-181? Which of the four Chinese CV-181's Dennis is referring to?
Last edited by Musica Amantem; 04-20-2017 at 03:36 PM. |
#3569
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No, not as the rectifier. A substitute for the 6BX7 in the LP27a.
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#3570
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Chinese CV-181 tubes are mislabeled 6SN7 tubes. They are not really CV-181s. And they are definitely not rectifiers. Don't ever stick them into that socket.
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