Dave,
I had the stock Lamm tubes in the unit. I was quite taken aback at how much more airy and detailed the presentation was. Beautiful shimmering cymbals and in general the highs just came to life.
However, there was a bit of a trade off: overall presentation is on the lean side and I can't say the midrange is 'to die for'. I'm starting to experiment with other tubes now. My main goal is to tame the harsh, metallic sounding tweeter in the Sashas.
Last night I put Telefunkens in and there is a huge difference in presentation: much more midrange (beautiful and textured), but while the highs seem OK, they are not as airy as the Amperex. I will listen more over the next few days to see how it sits with me and I will report back.
I am very impressed with the Lamms and how the character can change so drastically with tube rolling.
Slightly off topic: Dave, what tubes do you use in your Seven? I have the same phono stage.
Ian
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