I have a set of Sovteks and EH Gold Pins for my BAT VK-51SE. Sovteks are new. I'm waiting for them to break in. They have about 50 hours, which is probably enough but to have a piece of mind I will let them run for a total of 100 hours. So far from what I remember the EH Gold Pins possibly had a bit more bass and just a tad more midrange lushness and also highs were a bit softer. But then again, until I swap them this weekend, I won't know.
Sovtek are fine tubes though. Probably a bit more durable than the EH and less noisy. May be a bit more neutral.
Anyway, I'll report back if you're interested.
Sovtek are fine tubes though. Probably a bit more durable than the EH and less noisy. May be a bit more neutral.
Anyway, I'll report back if you're interested.