2. amps-preamps
  3. 175191-139155

What made you change to a 6SN7 preamp?

If you made an intentional shift toward a 6SN7-based tube preamp, what sonic characteristics motivated your move?

I have been doing some comparisons and think I have some reasons I like the 6SN7 better, but there are so many factors which could be at play, that I'm not sure what is responsible. 

Rather than list my details for others to analyze, I'd rather hear your answer to the basic question.

Tell me about your path toward a 6SN7 preamp?

What did you change from and why?

Even if, overall, the change was worth it, did you lose anything in the transition? What?

hilde45

Showing 2 responses by mglik

mglik
913 posts
 

The MP-1 uses 6 6SN7s and 8 12AT7s.

After having microphonic issues with some 6SN7s I got lucky and got all excellent, quiet NOS Sylvania 6SN7s and great Mil spec 12AT7s for the phono stage. The improvement in SQ was dramatic and huge.

Brent Jesse and other tube suppliers do not have what private horders have.

If you can, find a horder.

 

mglik
913 posts
 

It was said that Vintage Tube carefully tests all tubes for microphonics.

Testing equipment has no way to do this.

The only way is to plug the tube into your component and wait a bit.

Tube sellers cannot do this. Hoarders may have the best tubes. But even then, you need to buy more than you need just in case.

I paid $750 for 4 Psvane 6SN7 Globes and they were all microphonic.

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