Best tubes for sonic frontiers power 2?

I've never heard a SF Line 2 nor do I really know what demands it makes on its tubes, either by way of ruggedness or noise. If noise/ruggedness is not an issue try the same tubes I mentioned as possibles for your amp. If noise and ruggedness are issues for you, the only reasonably priced tube I have used (in my ARC SP10II) is the NOS Reflector 6H23EB which is not a warm tube, only marginally better than old Sovteks (I think much better however than the newer Sovteks).

FWIW, in case I've not already said it, get your initial experience rolling tubes by using current production stuff, not expensive old NOS tubes so highly recommended. That can be a tar pit for the unwary.

I changed winged Svetlanas for the new Tung-sol 6550's in my Power 3's and they are a much better tube all around. Better low end definition, smoother mids and extended, sweeter treble. A significant upgrade and I was surprised that a variant power tube of the same type would have made such a difference. I am very partial to the KT88's as well as I think they are a little "sweeter" than 6550's, but I never tried them in the Power 3's.

Hi All,

I have an SF Line 2 on the way. I will be using it with a ModWright Oppo and primarily listen to digital media. I also recently purchased a Conrad-Johnson MF2275, so there's that....

I am looking for a 'dark liquid' sound. Not 'warm' or 'bloomy', certainly no glare or blare. A hint 'woody' would be alright. Tightly radiant and/or illuminating would be good.

So what tubes can you all recommend?

Thanks so much for for all of your shared experience.

Best,
b

Shuguang Treasure KT88-Z will give you a ’dark liquid’ sound, although it won’t come cheap!

Black Treasure KT88-z will set you back $110 each at TheTubeStore.