I'll echo all the comments above. I went from a VK60 to a vk75se, it's a huge difference in the bass, the highs, detail etc. The whole input section is different, not just 6sn7 vs 6h30.
It's easily heard. Get the 75se now. You may not want another on on your 501's
It's easily heard. Get the 75se now. You may not want another on on your 501's

