Modern brand tube maskers

[Alrainbow]

can someone comment on makers of new tubes.
Brands like
ELROG
psvane and shung
EML
KRON
Sophia electric
amd what ever others that do make various models for audio use.

[atmasphere]

Kron is a plant in eastern Europe that specializes in boutique tubes. Eunice Kron is the contact. Kron (also KR) has been in business for about 25 years to the best of my knowledge.

Psvane, TJ Music and I think also Sophia are Chinese-made boutique brands. We have a number of customers that like to roll tubes in our gear; the feedback we have from them is that all three of these brands sound as good as the best NOS, usually without the tradeoffs. That's a pretty powerful statement! One should keep in mind though that just because its a boutique tube does not mean that it won't be noisy or microphonic so they should be auditioned for these issues immediately, as usually they have a 90 day warranty.

Shuguang is a Chinese vacuum tube plant. The Psvane tubes might be built in that plant.

[Dr.Ears]

Shuguang does make the Psvane series of vacuum tubes with specs provided by different engineers. They also make the Sophia Electric line of vacuum tubes