Hi Jafox,
You ask why I would ask such questions, why wouldn't I, you obviously did not know the answers to my question entirely either. I'm always learning, I also like to know what other owners specifically are using or what they have found in relation to comparisions. I'm a fairly new comer also to owning the VAC pre-amp specifically so I had no clue to what these tubes were responsible for. I have read info. in relation to the line stage tube changes and also some with the 300.1 amps but nothing directed to the actual phono section.
As for what tubes come with a specific pce is out of mine and your control and a debate in general which should be taken up and directed to the manufacture but I do agree with in general what Pcosta wrote.
My questions
I see no replies from actual owners as of yet but thanks for the general info.
I do have some info. that was provided by Brent;
- The back row of tubes are the inputs.
- Middle row second gain stage.
- Front row are the low impedance output buffers.
"They all play a part in the sound, but the front set are theoretically under the most stress, so I would avoid putting anything delicate and/or rare in that position."
"The Chineses 12AX7 is currently the best one on the market by far. They are of current manufacture, and remarkable in that regard, though they are from the top 10% of the batch in terms of performance, even before they are graded.
The Chinese tubes are not the prettiest tubes, but they are remarkably consistant."
"With 6 tubes to play with, simply swapping them around usually nets a good result in terms of channel balance, and with passive RIAA, they aren't as critcal to one another."
You ask why I would ask such questions, why wouldn't I, you obviously did not know the answers to my question entirely either. I'm always learning, I also like to know what other owners specifically are using or what they have found in relation to comparisions. I'm a fairly new comer also to owning the VAC pre-amp specifically so I had no clue to what these tubes were responsible for. I have read info. in relation to the line stage tube changes and also some with the 300.1 amps but nothing directed to the actual phono section.
As for what tubes come with a specific pce is out of mine and your control and a debate in general which should be taken up and directed to the manufacture but I do agree with in general what Pcosta wrote.
My questions
I see no replies from actual owners as of yet but thanks for the general info.
I do have some info. that was provided by Brent;
- The back row of tubes are the inputs.
- Middle row second gain stage.
- Front row are the low impedance output buffers.
"They all play a part in the sound, but the front set are theoretically under the most stress, so I would avoid putting anything delicate and/or rare in that position."
"The Chineses 12AX7 is currently the best one on the market by far. They are of current manufacture, and remarkable in that regard, though they are from the top 10% of the batch in terms of performance, even before they are graded.
The Chinese tubes are not the prettiest tubes, but they are remarkably consistant."
"With 6 tubes to play with, simply swapping them around usually nets a good result in terms of channel balance, and with passive RIAA, they aren't as critcal to one another."